CN202374172U - Communication device based on advanced telecommunications computing architecture, and filter circuit - Google Patents
Communication device based on advanced telecommunications computing architecture, and filter circuit Download PDFInfo
- Publication number
- CN202374172U CN202374172U CN2011202623456U CN201120262345U CN202374172U CN 202374172 U CN202374172 U CN 202374172U CN 2011202623456 U CN2011202623456 U CN 2011202623456U CN 201120262345 U CN201120262345 U CN 201120262345U CN 202374172 U CN202374172 U CN 202374172U
- Authority
- CN
- China
- Prior art keywords
- positive
- negative electrode
- filter circuit
- transient overvoltage
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Filters And Equalizers (AREA)
Abstract
The embodiment of the utility model discloses a communication device based on advanced telecommunications computing architecture (ATCA), and a filter circuit, and relates to the technical field of wireless communication. According to the utility model, the work reliability of the communication device can be improved. The communication device based on ATCA comprises a cabinet, a frame disposed therein, and a node single board arranged inside the frame. The cabinet is provided with a cabinet filter circuit used for filtering noise signals output by a power supply cabinet. The frame is equipped with a frame filter circuit used for filtering and interfering noise signals among frames. The node single board is provided with a single board filter circuit used for filtering and conducting noise signals generated on the node single board. According to the utility model, the work reliability of the communication device can be improved.
Description
Technical field
The utility model relates to communication equipment field, relates in particular to a kind of communication equipment and filter circuit based on Advanced telecom computing architecture.
Background technology
ATCA (Advanced Telecom Computing Architecture; Advanced telecom computing architecture) is a kind of universal standard system platform of a kind of open, the interoperable that proposes based on PICMG (PCI Industrial Computer Manufacturers Group, PCI industrial computer tissue) 3.0.ATCA machine frame configurable 14 or 16 Node Boards.Components and parts power supplies is carried out voltage transitions and get by-DC48V (DC, Direct Current, direct current) power supply on each Node Board, incident is conduct, the generation of radiated noise, and then cause between Node Board, the noise between machine frame.Stipulated machine frame level, single-plate grade two-stage filtering standard among the ATCA standard P ICMG3.0: 1) each Node Board all contains the veneer filter circuit to filter (the Electro-Magnetic Interference of EMI on the veneer for this reason; Electromagnetic interference) conducted noise should satisfy CISPR 22B (EN55022B) standard to the filtering of conducted noise; 2) machine frame is directed against the decay that the interior conducted noise of intermediate frequency 150KHZ-30MHZ scope should provide 18dB, and the conducted noise in the high frequency 30MHZ-1.0GHZ scope carries out the decay of 18dB at least.
Present in addition ATCA veneer has been realized the application greater than 1.0GHZ speed veneer, needs accordingly to solve to be higher than 1.0GHZ noise filtering problem.
Present filter unit only contains machine frame power filter, plate level power supply filtering two-stage filter unit; Non-transformer filter unit in the rack; Be direct-connected relation; Machine frame power filter unit filtering machine frame power supply input intermediate frequency 150KHZ-30MHZ, high frequency 30MHZ-1.0GHZ noise jamming, veneer filter circuit filtering one-board power supply input intermediate frequency 150KHZ-30MHZ noise jamming, block architecture diagram is as shown in Figure 1.
Wherein, relevant signal description is following:
-DC48V_OUT1: direct current-48V power cabinet output supply voltage;
-DC48V_IN2: rack power filter unit input supply voltage;
-DC48V_OUT2: rack power filter unit output supply voltage, consistent with input-DC48V_IN2;
-DC48V_IN3: machine frame power filter unit input supply voltage;
-DC48V_OUT3: machine frame power filter unit output supply voltage;
-DC48V_IN4: one-board power supply filter unit input supply voltage;
Power supply transmits and filtering is described below:
The power supply of direct current-48V power cabinet is exported the power input that is sent to the rack filter circuit through the rack service cable, and direct current-48V directly exports without Filtering Processing in rack; The power supply of rack is exported the power input that is sent to the machine frame filter circuit through the machine frame service cable, gets into the filtering of machine frame filter circuit; The power supply of machine frame is exported the power input that is sent to the veneer filter circuit through the backboard power bus, gets into the filtering of veneer filter circuit.
The concrete realization of filter unit is described below:
The first, rack power filter unit;
Existing rack filter circuit is direct-connected, no filter function.
The second, machine frame power filter unit;
Existing machine frame power filter unit, emphasis carries out filtering to intermediate frequency 150KHZ-30MHZ, high frequency 30MHZ-1.0GHZ noise jamming.As shown in Figure 2, to the 150KHZ-30MHZ noise filtering, adopt differential mode capacitor C1, C2 filtering differential mode noise to disturb, adopt common mode inductance L1 to the 30MHZ-1.0GHZ noise filtering, Y filter capacitor C3, the dry sound of C4 filtering common mode disturbances.
The 3rd, the one-board power supply filter unit;
Existing one-board power supply filter unit is used to filter the conducted noise that the Board Power up source module produces; Its structure is as shown in Figure 3; Wherein electromagnetic interface filter is used to filter common mode and the differential mode conducted noise between intermediate frequency 150kHz～30MHz, and require to satisfy EN55022B (CISPR22): 150kHz～30MHz noise should be lower than EN55022B quasi-peak value detectable limit.Common implementation is the electromagnetic interface filter V2 that satisfies the EN55022B standard, is equipped with unidirectional transient overvoltage and suppresses diode D1, hot-swapping controller V1, storage capacitor C1, High frequency filter Y capacitor C 2, C3.Characteristic is following:
Unidirectional transient overvoltage suppresses forward transient overvoltage-DC48V_IN that diode is used for clamper veneer input power supply, makes it not to be higher than the input supply voltage forward maximum permissible value of veneer;
When hot-swapping controller V1 is used for this veneer and inserts the machine frame power supply, the instantaneous short circuit overload current that causes of this plate capacitive load (like electric capacity) gently, reduce right-48V backboard power bus voltage (be the veneer input supply voltage :-DC48V_IN) fall influence;
EMI active filter V2, Y capacitor C 2, C3 carry out filtering to common mode and the differential mode noise between the 150kHz～30MHz on the veneer;
In the process that realizes the utility model, utility model people finds to exist in the prior art following technical problem:
First; Existing veneer filter circuit can only clamper positive voltage direction transient overvoltage; Because existing veneer filter circuit is configured to unidirectional transient overvoltage clamp diode, thus transient overvoltage that can only clamper control positive voltage direction, transient overvoltage that can't clamper negative voltage direction.
Second; Existing machine frame filter circuit does not have transient overvoltage clamper function; During machine frame powers on, energy-storage travelling wave tubes such as the common mode inductance of machine frame filter circuit, differential mode capacitor also will cause input/output voltage just, to overshoot, these overshoot voltages surpass the input voltage allowed band of veneer sometimes.
The 3rd, existing machine frame filter circuit only can reach the minimal attenuation requirement of 18dB to high band (30MHZ-1.0GHZ) conducted noise filtration result.
The 4th, existing secondary filtering framework is not considered low frequency (150KHZ) filtering, will have low-frequency ripple voltage on the machine frame power bus.
The utility model content
The utility model embodiment provides a kind of communication equipment and filter circuit based on ATCA, is used to improve the reliability of communication device works.
A kind of communication equipment based on Advanced telecom computing architecture; Comprise rack, be arranged on the machine frame in the rack and be arranged on the Node Board in the machine frame; Be provided with in the said rack and be used for the rack filter circuit that filtering is the noise signal of rack power cabinet output that power supply is provided; Be provided with the machine frame filter circuit that is used for interfering noise signal between the filtering machine frame in the said machine frame, be provided with the veneer filter circuit of the conducted noise signal that is used for producing on the filtering Node Board in the said Node Board.
A kind of filter circuit, especially rack filter circuit comprise that the two-way transient overvoltage between the positive and negative electrode that is connected across power supply successively suppresses diode, one or more low frequency filtering electric capacity and electric charge bleed off resistance.
A kind of filter circuit; Especially machine frame filter circuit; Comprise that first feedthrough capacitor, second feedthrough capacitor, the first two-way transient overvoltage suppress diode, the second two-way transient overvoltage suppresses diode, the 3rd two-way transient overvoltage inhibition diode, first differential mode capacitor, common mode inductance, second differential mode capacitor, electric charge bleed off resistance, High frequency filter Y electric capacity, wherein:
First feedthrough capacitor and second feedthrough capacitor are connected on respectively on the positive pole, negative pole of input power supply, the package lead termination the earth of first feedthrough capacitor and second feedthrough capacitor;
The first two-way transient overvoltage suppresses diode and first differential mode capacitor is connected across between the positive and negative electrode of input power supply; The second two-way transient overvoltage suppresses between positive pole that diode is connected across the input power supply, the earth, and the 3rd two-way transient overvoltage suppresses diode and is connected across between input power cathode, the earth; Common mode inductance is connected on the positive pole and negative pole of input, out-put supply; Second differential mode capacitor is connected across between the positive and negative electrode of out-put supply; Electric charge bleed off resistance is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply.
A kind of filter circuit, especially veneer filter circuit comprise that two-way transient overvoltage suppresses diode, hot-swapping controller, electromagnetic interface filter, storage capacitor, High frequency filter Y electric capacity, wherein:
Two-way transient overvoltage suppresses diode and is connected across between the positive and negative electrode of importing power supply; Two input terminals of hot-swapping controller connect the positive and negative electrode of importing power supply respectively, and two lead-out terminals of hot-swapping controller connect two input terminals of electromagnetic interface filter respectively; Two lead-out terminals of electromagnetic interface filter connect the positive and negative electrode of out-put supply respectively; Storage capacitor is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across between the positive and negative electrode of out-put supply.
In the communication equipment that the utility model embodiment provides, in rack, be provided with the rack filter circuit, can effectively reduce the low-frequency noise of power cabinet output, thereby reduce the low-frequency ripple voltage that exists on the machine frame power bus based on ATCA.
In the machine frame filter circuit that the utility model embodiment provides; The first two-way transient overvoltage that is provided with suppresses diode, the second two-way transient overvoltage suppresses diode and the 3rd two-way transient overvoltage suppresses diode, can suppress respectively positive source over the ground, power supply just/negative pole between, power cathode transient overshoot voltage over the ground.First feedthrough capacitor and second feedthrough capacitor that are provided with can suppress the noise of high band, have improved the filter effect of high band.
In the veneer filter circuit that the utility model embodiment provides, the two-way transient overvoltage of setting suppresses the diode transient overvoltage of clamper control positive voltage direction and negative voltage direction simultaneously.
Description of drawings
Fig. 1 is an ATCA device sketch map of the prior art;
Fig. 2 is a machine frame filter circuit sketch map of the prior art;
Fig. 3 is a veneer filter circuit sketch map of the prior art;
The ATCA device sketch map that Fig. 4 provides for the utility model embodiment;
The rack filter circuit sketch map that Fig. 5 provides for the utility model embodiment;
The machine frame filter circuit sketch map that Fig. 6 provides for the utility model embodiment;
The veneer filter circuit sketch map that Fig. 7 provides for the utility model embodiment.
Embodiment
In order to improve the performance of ATCA device, the utility model embodiment provides a kind of communication equipment based on ATCA, in this equipment, in rack, is provided with the rack filter circuit of the low-frequency noise signal that is used for the output of filter out power cabinet.
Referring to Fig. 4, the communication equipment based on ATCA that the utility model embodiment provides comprises:
Rack, be arranged on the machine frame in the rack and be arranged on the Node Board in the machine frame; And; Be provided with in the said rack and be used for the rack filter circuit that filtering is the noise signal of rack power cabinet output that power supply is provided; Be provided with the machine frame filter circuit that is used for interfering noise signal between the filtering machine frame in the said machine frame, be provided with the veneer filter circuit of the conducted noise signal that is used for producing on the filtering Node Board in the said Node Board.
Concrete signal is described below:
-DC48V_OUT1: direct current-48V power cabinet output supply voltage;
-DC48V_IN2: rack power filter unit input supply voltage;
-DC48V_OUT2: rack power filter unit output supply voltage;
-DC48V_IN3: machine frame power filter unit input supply voltage;
-DC48V_OUT3: machine frame power filter unit output supply voltage;
-DC48V_IN4: one-board power supply filter unit input supply voltage.
Power supply transmits and filtering is described below:
The power supply of power cabinet is exported the power input that is sent to the rack filter circuit through the rack service cable, gets into the rack filter circuit and carries out exporting after the filtering; The power supply of rack is exported the power input that is sent to the machine frame filter circuit through the machine frame service cable, gets into the machine frame filter circuit and carries out exporting after the filtering; The power supply of machine frame is exported the power input that is sent to the veneer filter circuit through the backboard power bus, gets into the veneer filter circuit and carries out filtering.
As shown in Figure 5, said rack filter circuit comprises that the two-way transient overvoltage between the positive and negative electrode that is connected across power supply successively suppresses diode D1, one or more low frequency filtering capacitor C 1～Cn, and electric charge bleed off resistance R 1.
Preferable, said rack filter circuit also comprises the piezo-resistance ZR1 between the positive and negative electrode that is connected across power supply.
As shown in Figure 6; Said machine frame filter circuit comprises that the first feedthrough capacitor C1, the second feedthrough capacitor C2, the first two-way transient overvoltage suppress diode D2, the second two-way transient overvoltage suppresses diode D1, the 3rd two-way transient overvoltage inhibition diode D3, the first differential mode capacitor C3, common mode inductance L1, the second differential mode capacitor C4, electric charge bleed off resistance R 1, High frequency filter Y capacitor C 5 and C6, wherein:
The first feedthrough capacitor C1 and the second feedthrough capacitor C2 are connected on respectively on the positive pole, negative pole of input power supply, the package lead termination the earth of the first feedthrough capacitor C1 and the second feedthrough capacitor C2;
The first two-way transient overvoltage suppresses diode D2 and the first differential mode capacitor C3 is connected across between the positive and negative electrode of input power supply; The second two-way transient overvoltage suppresses between positive pole that diode D1 is connected across the input power supply, the earth, and the 3rd two-way transient overvoltage suppresses diode D3 and is connected across between input power cathode, the earth; Common mode inductance L1 is connected on the positive pole and negative pole of input, out-put supply; The second differential mode capacitor C4 is connected across between the positive and negative electrode of out-put supply; Electric charge bleed off resistance R 1 is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply, and wherein C5 is connected across between the positive pole and the earth of out-put supply, and C6 is connected across between the negative pole and the earth of out-put supply.
Preferable, said machine frame filter circuit also comprises piezo-resistance ZR1, piezo-resistance ZR1 is connected across between the positive and negative electrode of input power supply.
Preferable, said machine frame filter circuit comprises that also the 4th two-way transient overvoltage suppresses diode D4, the 4th two-way transient overvoltage suppresses diode D4 and is connected across between the positive and negative electrode of out-put supply.
As shown in Figure 7, said veneer filter circuit comprises that two-way transient overvoltage suppresses diode D1, hot-swapping controller V1, electromagnetic interface filter V2, storage capacitor C1, High frequency filter Y capacitor C 2 and C3, wherein:
Two-way transient overvoltage suppresses diode D1 and is connected across between the positive and negative electrode of importing power supply; Two input terminals of hot-swapping controller V1 connect the positive and negative electrode of importing power supply respectively, and two lead-out terminals of hot-swapping controller V1 connect two input terminals of electromagnetic interface filter V2 respectively; Two lead-out terminals of electromagnetic interface filter V2 connect the positive and negative electrode of out-put supply respectively; Storage capacitor C1 is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply, and wherein C2 is connected across between the positive pole and the earth of out-put supply, and C3 is connected across between the negative pole and the earth of out-put supply.
Still referring to Fig. 5, the utility model embodiment provides a kind of rack filter circuit, comprises that the two-way transient overvoltage between the positive and negative electrode that is connected across power supply successively suppresses diode D1, one or more low frequency filtering capacitor C 1～Cn, and electric charge bleed off resistance R 1.
Preferable, said rack filter circuit also comprises the piezo-resistance ZR1 between the positive and negative electrode that is connected across power supply.
In the present embodiment, in rack, increase the low frequency filtering unit, the low frequency of effectively filtering-DC48V power cabinet output (＜150KHZ) noise signal.
Rack power filter unit is made up of piezo-resistance ZR1, two-way Transient Suppression Diode D1, low frequency filtering capacitor C 1～Cn, electric charge bleed off resistance R 1.Above assembly all is connected across between the positive and negative electrode of power supply.
Concrete signal is described below:
-DC48V_IN: rack filter circuit input supply voltage;
-DC48V_1: diode D1 input supply voltage;
-DC48V_2: capacitor C 1～Cn input supply voltage;
-DC48V_3: resistance R 1 input supply voltage;
-DC48V_OUT: rack filter circuit output supply voltage.
Concrete operation principle is described below:
When thunderbolt voltage appeared at rack power filter unit input, piezo-resistance ZR1 was with puncture short, and the high voltage of avoiding being struck by lightning flows into next stage D1 two ends;
If positive and negative transient overshoot voltage appears in input, then two-way Transient Suppression Diode D1 this voltage be suppressed at selected voltage (less than C1～Cn withstand voltage) under, the voltage that guarantees to be sent to capacitance group C1～Cn two ends is less than its withstand voltage, C1～Cn trouble free service;
Rack input supply voltage low frequency (＜150KHZ) noise jamming, behind low frequency capacitance group C1～Cn, C1～Cn will carry out filtering to this frequency range noise;
When the rack input cut off the power supply, the residual positive and negative electric charge at capacitor C 1～Cn two ends was through resistance R 1 bleed off, positive and negative charge cancellation.Avoid the residual charge at capacitor C 1～Cn two ends when rack powers on next time to improve instantaneous output voltage, form transient overshoot voltage.
Still referring to Fig. 6; The utility model embodiment provides a kind of machine frame filter circuit; Comprise that the first feedthrough capacitor C1, the second feedthrough capacitor C2, the first two-way transient overvoltage suppress diode D2, the second two-way transient overvoltage suppresses diode D1, the 3rd two-way transient overvoltage inhibition diode D3, the first differential mode capacitor C3, common mode inductance L1, the second differential mode capacitor C4, electric charge bleed off resistance R 1, High frequency filter Y capacitor C 5 and C6, wherein:
The first feedthrough capacitor C1 and the second feedthrough capacitor C2 are connected on respectively on the positive pole, negative pole of input power supply, the package lead termination the earth of the first feedthrough capacitor C1 and the second feedthrough capacitor C2;
The first two-way transient overvoltage suppresses diode D2 and the first differential mode capacitor C3 is connected across between the positive and negative electrode of input power supply; The second two-way transient overvoltage suppresses between positive pole that diode D1 is connected across the input power supply, the earth, and the 3rd two-way transient overvoltage suppresses diode D3 and is connected across between input power cathode, the earth; Common mode inductance L1 is connected on the positive pole and negative pole of input, out-put supply; The second differential mode capacitor C4 is connected across between the positive and negative electrode of out-put supply; Electric charge bleed off resistance R 1 is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply, and wherein C5 is connected across between the positive pole and the earth of out-put supply, and C6 is connected across between the negative pole and the earth of out-put supply.
Preferable, said machine frame filter circuit also comprises piezo-resistance ZR1, piezo-resistance ZR1 is connected across between the positive and negative electrode of input power supply.
Preferable, said machine frame filter circuit comprises that also the 4th two-way transient overvoltage suppresses diode D4, the 4th two-way transient overvoltage suppresses diode D4 and is connected across between the positive and negative electrode of out-put supply.
In the present embodiment, machine frame power filter unit increases following two functions newly except that accomplishing 150KHZ-30MHZ intermediate frequency, the filtering of 30MHZ-1.0GHZ high-frequency noise:
The first, dispose two-way transient overvoltage clamp diode, during being used to suppress machine frame and powering on, the positive and negative overshoot voltage that machine frame power filter unit produces;
The second, increase feedthrough capacitor, utilize feedthrough capacitor effectively filtering up to hundreds of MHZ even above the characteristic of the noise of 1GHZ.Effective above high band noise jamming of filtering 1GHZ.
Particular circuit configurations is described below:
ZR1 is connected across between the input power supply positive and negative electrode;
C1, C2 are connected on respectively on the positive and negative electrode of input power supply, package lead termination the earth;
D2 is connected across between the input power supply positive and negative electrode, and D1 is connected across between input positive source, the earth, and D3 is connected across between input power cathode, the earth;
Between the C3 cross-over connection input power supply positive and negative electrode, C4 is connected across between the out-put supply positive and negative electrode;
L1 is connected on the positive and negative of input, out-put supply and extremely goes up;
R1 is connected across between the out-put supply positive and negative electrode;
C5 is connected across between out-put supply positive pole, the earth, and C6 is connected across between out-put supply negative pole, the earth;
D4 is connected across between the out-put supply positive and negative electrode.
Concrete signal is described below:
-48V_IN: machine frame filter circuit input supply voltage;
-48V_1: feedthrough capacitor C1, C2 input supply voltage;
-48V_2: diode D2 input supply voltage;
-48V_3: common mode inductance L1, differential mode capacitor C3 input supply voltage;
-48V_4: electric charge bleed off resistance R 1 input voltage;
-48V_5:Y filter capacitor C5, C6 input voltage;
-48V_OUT: machine frame filter circuit output supply voltage.
Concrete operation principle is described below:
When thunderbolt voltage appeared at machine frame power filter unit input, piezo-resistance ZR1 was with puncture short, and the high voltage of avoiding being struck by lightning flows into the next stage input;
Input supply voltage disturbs greater than the 1.0GHZ high-frequency noise, and during through C1 behind the feedthrough capacitor～C2, C1～C2 will suppress this frequency range noise;
If positive and negative transient overshoot voltage appears in input, when then this voltage transmits D1, D2, D3, two-way Transient Suppression Diode D1, D2, D3 will suppress respectively positive source over the ground, power supply just/negative pole between, power cathode transient overshoot voltage over the ground;
When intermediate frequency 150KHZ-30MHZ noise jamming transmission process was carried out differential mode capacitor C3, C4 and common mode inductance L1, this frequency range noise will be by effective filtering;
When the machine frame input cut off the power supply, the residual positive and negative electric charge at capacitor C 3～C4 two ends was through resistance R 1 bleed off, positive and negative charge cancellation.Avoid the residual charge at capacitor C 3～C4 two ends when machine frame powers on next time to improve output voltage, form transient overshoot voltage;
30MHZ-1.0GHZ common-mode noise, during through Y capacitor C 5, C6, will be by filtering;
Two-way Transient Suppression Diode D4 suppresses power output end transient overshoot voltage.
Still referring to Fig. 7, the utility model embodiment provides a kind of veneer filter circuit, comprises that two-way transient overvoltage suppresses diode D1, hot-swapping controller V1, electromagnetic interface filter V2, storage capacitor C1, High frequency filter Y capacitor C 2 and C3, wherein:
Two-way transient overvoltage suppresses diode D1 and is connected across between the positive and negative electrode of importing power supply; Two input terminals of hot-swapping controller V1 connect the positive and negative electrode of importing power supply respectively, and two lead-out terminals of hot-swapping controller V1 connect two input terminals of electromagnetic interface filter V2 respectively; Two lead-out terminals of electromagnetic interface filter V2 connect the positive and negative electrode of out-put supply respectively; Storage capacitor C1 is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply, and wherein C2 is connected across between the positive pole and the earth of out-put supply, and C3 is connected across between the negative pole and the earth of out-put supply.
In the present embodiment, the veneer filter circuit is configured to two-way transient overvoltage clamp diode, can realize the two-way clamper of transient overvoltage of positive and negative voltage direction.
Particular circuit configurations is described below:
Two-way transient overvoltage suppresses diode D1 and is connected across between the power supply positive and negative electrode;
Two input terminals of hot-swapping controller V1 connect input power supply positive and negative electrode, and two terminals of output connect the input of electromagnetic interface filter V2;
The output of electromagnetic interface filter V2 connects the out-put supply two ends;
Storage capacitor C1, High frequency filter Y capacitor C 2, C3 are connected across the out-put supply two ends.
Concrete signal is described below:
-DC48V_IN: one-board power supply filter unit input supply voltage;
-DC48V_1: hot-swapping controller V1 input supply voltage;
-DC48V_2:EMI filter V2 input supply voltage;
-DC48V_OUT: one-board power supply filter unit output voltage.
Concrete operation principle is described below:
Two-way transient overvoltage suppresses diode D1 and is used for the two-way transient overvoltage of clamper veneer input power supply :-DC48V_IN, makes it not to be higher than the input supply voltage maximum permissible value of veneer;
Hot-swapping controller V1 is used for when this veneer inserts the machine frame power supply, the instantaneous short circuit overload current that causes of this plate capacitive load (like electric capacity) gently, reduce right-48V backboard power bus voltage (be the veneer input supply voltage :-DC48V_IN) fall influence;
EMI active filter V2, Y capacitor C 2, C3 decay to common mode and differential mode noise between 150kHz～30MHz;
(when DC48V_IN) falling, the electric energy of the last storage of C1 will discharge, and keep the filter unit output voltage (DC48V_OUT) as far as possible steadily constant when the veneer input supply voltage.
To sum up, the beneficial effect of the utility model comprises:
In the communication equipment that the utility model embodiment provides, in rack, be provided with the rack filter circuit, can effectively reduce the low-frequency noise of power cabinet output, thereby reduce the low-frequency ripple voltage that exists on the machine frame power bus based on ATCA.
In the machine frame filter circuit that the utility model embodiment provides; The first two-way transient overvoltage that is provided with suppresses diode, the second two-way transient overvoltage suppresses diode and the 3rd two-way transient overvoltage suppresses diode, can suppress respectively positive source over the ground, power supply just/negative pole between, power cathode transient overshoot voltage over the ground.First feedthrough capacitor and second feedthrough capacitor that are provided with can suppress the noise of high band, have improved the filter effect of high band.
In the veneer filter circuit that the utility model embodiment provides, the two-way transient overvoltage of setting suppresses the diode transient overvoltage of clamper control positive voltage direction and negative voltage direction simultaneously.
In veneer filter circuit, machine frame filter circuit; All adopt two-way transient overvoltage clamp diode; Can limited clamper veneer, the overshoot voltage that forms during powering on of machine frame, guarantee input voltage in normal input voltage range, and then improve the system works reliability.
The utility model is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the utility model embodiment.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiment of the utility model, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the utility model scope.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (13)
1. the communication equipment based on Advanced telecom computing architecture comprises rack, is arranged on the machine frame in the rack and is arranged on the Node Board in the machine frame, it is characterized in that,
Be provided with in the said rack and be used for the rack filter circuit that filtering is the noise signal of rack power cabinet output that power supply is provided; Be provided with the machine frame filter circuit that is used for interfering noise signal between the filtering machine frame in the said machine frame, be provided with the veneer filter circuit of the conducted noise signal that is used for producing on the filtering Node Board in the said Node Board.
2. communication equipment as claimed in claim 1 is characterized in that, said rack filter circuit comprises that the two-way transient overvoltage between the positive and negative electrode that is connected across power supply successively suppresses diode, one or more low frequency filtering electric capacity and electric charge bleed off resistance.
3. communication equipment as claimed in claim 2 is characterized in that, said rack filter circuit also comprises the piezo-resistance between the positive and negative electrode that is connected across power supply.
4. communication equipment as claimed in claim 1; It is characterized in that; Said machine frame filter circuit comprises that first feedthrough capacitor, second feedthrough capacitor, the first two-way transient overvoltage suppress diode, the second two-way transient overvoltage suppresses diode, the 3rd two-way transient overvoltage inhibition diode, first differential mode capacitor, common mode inductance, second differential mode capacitor, electric charge bleed off resistance, High frequency filter Y electric capacity, wherein:
First feedthrough capacitor and second feedthrough capacitor are connected on respectively on the positive pole, negative pole of input power supply, the package lead termination the earth of first feedthrough capacitor and second feedthrough capacitor;
The first two-way transient overvoltage suppresses diode and first differential mode capacitor is connected across between the positive and negative electrode of input power supply; The second two-way transient overvoltage suppresses between positive pole that diode is connected across the input power supply, the earth, and the 3rd two-way transient overvoltage suppresses diode and is connected across between input power cathode, the earth; Common mode inductance is connected on the positive pole and negative pole of input, out-put supply; Second differential mode capacitor is connected across between the positive and negative electrode of out-put supply; Electric charge bleed off resistance is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply.
5. communication equipment as claimed in claim 4 is characterized in that, said machine frame filter circuit also comprises piezo-resistance, and piezo-resistance is connected across between the positive and negative electrode of input power supply.
6. like claim 4 or 5 described communication equipments, it is characterized in that said machine frame filter circuit comprises that also the 4th two-way transient overvoltage suppresses diode, the 4th two-way transient overvoltage suppresses diode and is connected across between the positive and negative electrode of out-put supply.
7. communication equipment as claimed in claim 1 is characterized in that, said veneer filter circuit comprises that two-way transient overvoltage suppresses diode, hot-swapping controller, electromagnetic interface filter, storage capacitor, High frequency filter Y electric capacity, wherein:
Two-way transient overvoltage suppresses diode and is connected across between the positive and negative electrode of importing power supply; Two input terminals of hot-swapping controller connect the positive and negative electrode of importing power supply respectively, and two lead-out terminals of hot-swapping controller connect two input terminals of electromagnetic interface filter respectively; Two lead-out terminals of electromagnetic interface filter connect the positive and negative electrode of out-put supply respectively; Storage capacitor is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across between the positive and negative electrode of out-put supply.
8. filter circuit, especially the rack filter circuit is characterized in that, comprises that the two-way transient overvoltage between the positive and negative electrode that is connected across power supply successively suppresses diode, one or more low frequency filtering electric capacity and electric charge bleed off resistance.
9. filter circuit as claimed in claim 8 is characterized in that, said rack filter circuit also comprises the piezo-resistance between the positive and negative electrode that is connected across power supply.
10. filter circuit; Especially machine frame filter circuit; It is characterized in that; Comprise that first feedthrough capacitor, second feedthrough capacitor, the first two-way transient overvoltage suppress diode, the second two-way transient overvoltage suppresses diode, the 3rd two-way transient overvoltage inhibition diode, first differential mode capacitor, common mode inductance, second differential mode capacitor, electric charge bleed off resistance, High frequency filter Y electric capacity, wherein:
First feedthrough capacitor and second feedthrough capacitor are connected on respectively on the positive pole, negative pole of input power supply, the package lead termination the earth of first feedthrough capacitor and second feedthrough capacitor;
The first two-way transient overvoltage suppresses diode and first differential mode capacitor is connected across between the positive and negative electrode of input power supply; The second two-way transient overvoltage suppresses between positive pole that diode is connected across the input power supply, the earth, and the 3rd two-way transient overvoltage suppresses diode and is connected across between input power cathode, the earth; Common mode inductance is connected on the positive pole and negative pole of input, out-put supply; Second differential mode capacitor is connected across between the positive and negative electrode of out-put supply; Electric charge bleed off resistance is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across the two ends of out-put supply.
11. filter circuit as claimed in claim 10 is characterized in that, said machine frame filter circuit also comprises piezo-resistance, and piezo-resistance is connected across between the positive and negative electrode of input power supply.
12., it is characterized in that said machine frame filter circuit comprises that also the 4th two-way transient overvoltage suppresses diode like claim 10 or 11 described filter circuits, the 4th two-way transient overvoltage suppresses diode and is connected across between the positive and negative electrode of out-put supply.
13. a filter circuit, especially the veneer filter circuit is characterized in that, comprises that two-way transient overvoltage suppresses diode, hot-swapping controller, electromagnetic interface filter, storage capacitor, High frequency filter Y electric capacity, wherein:
Two-way transient overvoltage suppresses diode and is connected across between the positive and negative electrode of importing power supply; Two input terminals of hot-swapping controller connect the positive and negative electrode of importing power supply respectively, and two lead-out terminals of hot-swapping controller connect two input terminals of electromagnetic interface filter respectively; Two lead-out terminals of electromagnetic interface filter connect the positive and negative electrode of out-put supply respectively; Storage capacitor is connected across between the positive and negative electrode of out-put supply; High frequency filter Y electric capacity is connected across between the positive and negative electrode of out-put supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202623456U CN202374172U (en) | 2011-07-22 | 2011-07-22 | Communication device based on advanced telecommunications computing architecture, and filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202623456U CN202374172U (en) | 2011-07-22 | 2011-07-22 | Communication device based on advanced telecommunications computing architecture, and filter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374172U true CN202374172U (en) | 2012-08-08 |
Family
ID=46597863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202623456U Expired - Lifetime CN202374172U (en) | 2011-07-22 | 2011-07-22 | Communication device based on advanced telecommunications computing architecture, and filter circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202374172U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103810831A (en) * | 2012-11-13 | 2014-05-21 | 中国科学院沈阳自动化研究所 | Data transmission device applied to power information acquisition |
| CN104868710A (en) * | 2015-05-11 | 2015-08-26 | 上海航盛实业有限公司 | Anti-interference power supply system of automobile data recorder |
| CN105530409A (en) * | 2014-09-29 | 2016-04-27 | 深圳市同为数码科技股份有限公司 | Anti-interference circuit |
| CN110233576A (en) * | 2019-07-11 | 2019-09-13 | 贵州航天林泉电机有限公司苏州分公司 | Vehicle-mounted motor driver auxiliary power unit with arousal function |
| CN113928403A (en) * | 2020-06-29 | 2022-01-14 | 北京新能源汽车股份有限公司 | Interference filtering circuit of steering wheel and electric automobile |
-
2011
- 2011-07-22 CN CN2011202623456U patent/CN202374172U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103810831A (en) * | 2012-11-13 | 2014-05-21 | 中国科学院沈阳自动化研究所 | Data transmission device applied to power information acquisition |
| CN105530409A (en) * | 2014-09-29 | 2016-04-27 | 深圳市同为数码科技股份有限公司 | Anti-interference circuit |
| CN105530409B (en) * | 2014-09-29 | 2018-11-27 | 深圳市同为数码科技股份有限公司 | Anti-jamming circuit |
| CN104868710A (en) * | 2015-05-11 | 2015-08-26 | 上海航盛实业有限公司 | Anti-interference power supply system of automobile data recorder |
| CN110233576A (en) * | 2019-07-11 | 2019-09-13 | 贵州航天林泉电机有限公司苏州分公司 | Vehicle-mounted motor driver auxiliary power unit with arousal function |
| CN113928403A (en) * | 2020-06-29 | 2022-01-14 | 北京新能源汽车股份有限公司 | Interference filtering circuit of steering wheel and electric automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3255770B1 (en) | Filter and power supply system | |
| CN202374172U (en) | Communication device based on advanced telecommunications computing architecture, and filter circuit | |
| CN102645912A (en) | Pure electric vehicle controller with anti-electromagnetic interference capability | |
| CN102340564A (en) | Circuit board for low-noise mobile phone and method for reducing noise of mobile phone system | |
| CN103795054A (en) | Lightning protection system and method of direct-current remote supply power equipment | |
| CN217721022U (en) | Circuit for conducting emission and noise immunity optimization of power input end of automobile electronic component | |
| CN112039473A (en) | Conformal anti-electromagnetic interference device for power end of substation equipment | |
| CN203387400U (en) | Electrical rapid transient interference eliminator | |
| CN210327380U (en) | Low-frequency EMI suppression filter | |
| CN202085163U (en) | Low voltage power line carrier wave resistance isolator | |
| CN115208343A (en) | Circuit structure based on miniaturized inertia measurement front-end electromagnetic compatibility design | |
| CN212992292U (en) | Filter circuit for high-voltage direct current input | |
| CN213879785U (en) | High-pass high-order filtering device | |
| CN211670777U (en) | Communication isolation circuit and IR46 electric energy meter working condition simulation device | |
| CN113078811A (en) | Command car communication equipment low electromagnetic radiation power supply unit | |
| CN217388666U (en) | USB audio frequency filter circuit, junction box and USB audio frequency system | |
| CN201418064Y (en) | Filter for an electronic beam processing apparatus | |
| CN112952785A (en) | Surge protection circuit | |
| CN202502967U (en) | Residual current breaker | |
| CN220775654U (en) | Micro inverter circuit | |
| CN101232274A (en) | Filter circuit for reducing differential signal electromagnetic interference | |
| CN2850126Y (en) | Power filter capable of preventing electromagnetic pulse | |
| CN202034778U (en) | Device for realizing parallel secondary loop voltage of electronic voltage transformer | |
| CN202524080U (en) | Serial filtering and surge protection device for direct current | |
| CN116455344A (en) | USB audio filter circuit, junction box, USB audio system and filtering method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |