CN201985826U - Intelligent grouped pulse generator - Google Patents
Intelligent grouped pulse generator Download PDFInfo
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- CN201985826U CN201985826U CN2011200075601U CN201120007560U CN201985826U CN 201985826 U CN201985826 U CN 201985826U CN 2011200075601 U CN2011200075601 U CN 2011200075601U CN 201120007560 U CN201120007560 U CN 201120007560U CN 201985826 U CN201985826 U CN 201985826U
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Abstract
The utility model discloses an intelligent grouped pulse generator which comprises a control panel, a linear power supply, a high-voltage power supply, a waveform generation loop, a keyboard plate and a liquid crystal display, wherein the keyboard plate provides an operation signal to the control panel; the control panel transmits a control signal to the liquid crystal display to display corresponding data and graphs; the linear power supply generates a direct-current electric power supply to provide for the control panel and the high-voltage power supply; the high-voltage power supply generates high-voltage energy flowing into the waveform generation loop; the pulse waveform output by the waveform generation loop is output to a coupling network; and the output part of the coupling network is output by six loops via a polar switching circuit. In the intelligent grouped pulse generator provided by the intelligent grouped pulse generator, the coupling network and the polar switching circuit are arranged to realize automatic voltage regulation and decoupling function, and various pulse repetition frequencies of hundreds of kHz can be output.
Description
Technical field
The utility model relates to a kind of group pulse generator, relates in particular to a kind of intelligent group pulse generator.
Background technology
Group pulse generator is a kind ofly to be used for electric, electronic product at the characteristics of electrical fast transient (eft) and requirement and custom-designed a kind of testing equipment, is mainly used in the influence of checking that electronic product may produce work when standing impulse train and disturb.Its technical parameter is according to latest edition international standard IEC 61000-4-4 (2004)+amd1,2 (2007) " Electromagnetic compatibility (EMC) – Part 4-4:Testing and measurement techniques-Electrical fast transient/burst immunity test "; Standard GB/T17626.4-2008 " EMC test and measuring technique electrical fast transient (eft) immunity experiment " (corresponding IEC61000-4-4:2004).
In present existing group pulse generator product, have the following disadvantages:
The impulse train series of products of the generator that 1, has such as most of domestic corporation, be original manual voltage regulation mode, for the magnitude of voltage that obtains user expectation need be through transferring the transformer knob, this occupation mode is not only wasted user's service time, owing to adopt artificial pressure regulation also to make the magnitude of voltage inaccuracy that obtains.
2, the impulse train coupling decoupling network of need arranging in pairs or groups, part be built-in single-phase three-wire of product or three-phase and four-line coupling decoupling network both at home and abroad.Three-phase network lacks a line (three-phase five-wire mode)
3, the generator that has is two kinds of the pulse repetition frequency 5kHz of outputting standard regulation and 100kHz only, and many users have repetition rate higher and even hundreds of kHz.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of intelligent group pulse generator, realizes automatic Regulation and decoupling function, and can export the pulse repetition frequency of multiple height to hundreds of kHz.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of intelligent group pulse generator, comprises that loop, keypad and demonstration liquid crystal take place for control board, linear power supply, high voltage source, waveform; Described keypad provides operation signal to control board, and the control board transfer control signal shows corresponding data and figure to showing in the liquid crystal; Described linear power supply produces dc power supply, offer control board and high voltage source, high voltage source produces high-pressure energy and flow in the waveform generation loop, wherein, the impulse waveform that loop output takes place described waveform outputs in the coupling network, and the output of described coupling network is by dividing six loop outputs behind the polarity switching circuit.
Above-mentioned intelligent group pulse generator, wherein, described control board comprise pulse frequency drive signal generation circuit, high-voltage power voltage initialization circuit, user profile memory circuit, outside relay drive circuit, with the keypad signal circuit, described pulse frequency drive signal generation circuit is provided with 14 bit string mouth data to digital-to-analogue DA chip by single-chip microcomputer, produce the analog voltage amount of 0V～5V, control VF electric voltage frequency conversion chip produces the pulse signal of corresponding frequencies, is connected to the electronic switch drive circuit behind the width by the monostable circuit regulating impulse again.
Above-mentioned intelligent group pulse generator, wherein, described linear power supply is the output of low pressure drop three-terminal voltage-stabilizing Guan Gongwu road, and all not altogether.
Above-mentioned intelligent group pulse generator, wherein, the loop takes place and comprises 12 groups of electrochemical capacitors series connection of employing in described waveform, is combined into voltage and reaches 5400V, the high-voltage energy storage capacitor C1 of the about 5uF of appearance value; Each electric capacity big resistance resistance R 1 usefulness all in parallel so that high-pressure uniform be distributed on each electrochemical capacitor; Storage capacitor C1 gives the half-breadth capacitor C 2 chargings by charging resistor R2, gives discharge resistance R4 discharge by discharge switch T; Discharge resistance R4 is 47 ohm of cement resistors of three series connection.
Above-mentioned intelligent group pulse generator, wherein, the inner magnet ring that the 1mH inductance value of having an appointment is set of described polarity switching circuit, be connected to coupling network, the electric current major part flow through discharge resistance when this magnet ring provided very big high-frequency resistance to discharge in order to negative polarity, and the electric current of the polarity switching circuit of flowing through is minimum, satisfies and the same discharge loop of positive polarity, and the variation that the negative polarity waveform is taken place is very little.
The utility model contrast prior art has following beneficial effect: the intelligent group pulse generator that the utility model provides, by coupling network and polarity switching circuit are set, realize automatic Regulation and decoupling function, and can export the pulse repetition frequency of multiple height to hundreds of kHz.
Description of drawings
Fig. 1 is the intelligent group pulse generator structural representation of the utility model;
The circuit diagram of loop and coupling network takes place in Fig. 2 for the utility model waveform.
Among the figure:
1 control board, 2 linear power supplies, 3 high voltage sourcies
Loop 5 keypads 6 take place and show liquid crystal in 4 waveforms
7 coupling networks, 8 polarity switching circuits
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is the intelligent group pulse generator structural representation of the utility model.
See also Fig. 1, the intelligent group pulse generator that the utility model provides comprises that control board 1, linear power supply 2, high voltage source 3, waveform loop 4, keypad 5 take place and show liquid crystal 6; Described keypad 5 provides operation signal to control board 1, and control board 1 transfer control signal shows corresponding data and figure to showing in the liquid crystal 6; Described linear power supply 2 produces dc power supply, offer control board 1 and high voltage source 3, high voltage source 3 produces high-pressure energy and flow in the waveform generation loop 4, wherein, the impulse waveform that loop 4 outputs take place described waveform outputs in the coupling network 7, the output of described coupling network 7 passes through polarity switching circuit 8 backs and divides six loops outputs, carries out pulse injection test specimen for the client and tests.
Introduce the composition of each major function piece below in detail:
(1) control board
Control board of the present utility model is core with the single-chip microcomputer, mainly by pulse frequency drive signal generation circuit, high-voltage power voltage initialization circuit, user profile memory circuit, outside relay drive circuit, form with the keypad signal circuit.
Pulse frequency drive signal generation circuit of the present utility model is 14 bit string mouth data to be set to digital-to-analogue DA chip by single-chip microcomputer, produce certain analog voltage amount, control VF electric voltage frequency conversion chip produces the pulse signal of corresponding frequencies, pass through the width of monostable circuit regulating impulse again, satisfy the needs that drive, be connected to the electronic switch drive circuit at last.
The principle of high-voltage power voltage initialization circuit is 14 bit string mouth data to be set to the DA chip by single-chip microcomputer, produces certain analog voltage amount (0V～5V), be used to control the output voltage amplitude of high voltage source.
The principle of user profile memory circuit is by single-chip microcomputer the waveform generation state information that the user of relevant work pattern determines to be stored in the data storing chip, so that transfer corresponding waveform generation state smoothly when working mode change.
The principle of outside relay drive circuit is the single-chip microcomputer transmission signals, by light-coupled isolation, amplify the adhesive of the corresponding relay of control or open through triode, and in software the adhesive sequential of control relay, a large amount of interference of avoiding adhesive simultaneously to bring.
With the principle of the signal circuit of keypad be single-chip microcomputer carries out panel leds signal and button sampled signal by buffer transmission, can reduce signal circuit, strengthen antijamming capability, be transferred to the instruction and data signal of keypad single-chip microcomputer in addition by serial port.
Power input at control board adopts π type filter circuit, purifies DC power supply such as 5V power supply.The Vcc of each chip on control board end, the patch capacitor that all pass through a 100nF is ground connection nearby, the signal circuit minimum of assurance chip.
(2) linear power supply
Because Switching Power Supply has the electromagnetic interference of upper frequency, can in the operate as normal of instrument, constitute certain influence, thereby the DC power supply of using in the instrument adopts the direct current linear stabilized power supply to control board and liquid-crystal display section.
Linear power supply of the present utility model (for control board, liquid crystal and relay use) adopts low pressure drop three-terminal voltage-stabilizing Guan Gongwu road output, and all not altogether; Every voltage power output all leaves certain surplus.
Linear power supply is at mains fluctuation ± 10% o'clock, and output voltage can remain unchanged.Each power tube is connected to high-power radiator, guarantees that temperature rise is unlikely excessive when full load is moved.
(3) high voltage source
Adopt the outsourcing high voltage source.Its input voltage 24V, maximum output voltage 5000V, 5V control, the constant-current type power supply of power 50W.Because adopting the current stabilization constant current is 10mA, directly to high-voltage capacitor charging, does not have charging current limiter resistance, in order to reduce the charging interval.
The high voltage source output voltage is better with the linearity of control voltage, and temperature is floated very little.
(4) loop takes place in waveform
Storage capacitor, polarity switching circuit and waveform form the shared printing forme of circuit.
See also Fig. 2, storage capacitor C1 adopts 12 groups of electrochemical capacitor series connection, is combined into voltage and reaches 5400V, the high-voltage energy storage capacitor of the about 5uF of appearance value; Each electric capacity big resistance resistance R 1 usefulness all in parallel so that high-pressure uniform be distributed on each electrochemical capacitor.Connect to such an extent that combining form replaces single bigger high-voltage capacitance of existing volume again by several groups of less electrochemical capacitor and the resistance of volume.
The waveform generation part, storage capacitor is given 1nF by charging resistor R2, and 2 chargings of 6KV half-breadth capacitor C are given discharge resistance R4 discharge by discharge switch T.Discharge resistance R4 is 47 ohm of cement resistors of three series connection, replaces using powerful high-tension resistive, has saved device cost.R3 is the impedance matching resistance of waveform generation part.
(5) keypad
Keypad is made up of the transmission circuit of panel leds signal and button, encoder sampled signal.The key encoder signal circuit is made up of the RC filter circuit, strengthens interference free performance.
(6) show liquid crystal
The liquid crystal drive functional circuit is received the instruction and data information of control board by single-chip microcomputer, conversion through software, produce corresponding liquid crystal driving signal, the Presentation Function of control panel liquid crystal, the benefit that does not adopt control board directly to produce liquid crystal driving signal is to reduce signal circuit as far as possible shortly, avoids responsive liquid crystal to be disturbed.
(7) coupling decoupling network
The coupling decoupling network divides MONITOR, L1, L2, L3, six loop outputs of N, PE, and waveform output is connected to the EUT power port of instrument coupling decoupling network front by the coupling plate that coupling capacitance C is housed through polarity switching circuit.
Group pulse generator of the present utility model is a size 450mm*440mm*180mm desktop chassis.
Cabinet inside is equipped with above mentioned circuit, realizes that pulse generator and coupling network are integrated.The cabinet inside each several part has been carried out closely reaching rational layout.
Produce bigger electromagnetic disturbance interference because the loop takes place waveform; The control board that is subject to disturb is placed in the shielding box of waveform generation circuit board below.
Power unit comprises that linear power supply and high voltage source are placed and the rear, loop takes place waveform.High voltage source is placed on the below of linear power supply.
According to the big characteristics of coupling decoupling network coupling pulse frequency, coupling network is closely placed and front panel wiring output, parallel placement with front panel.
Different functional module according to generator is divided, make the package assembly of generator more simple, the efficiency of assembling of the generator of raising has been saved debug time, reduce the failure-frequency of generator, and reserved the space of upgrading for special user's specific (special) requirements.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection range of the present utility model is worked as with being as the criterion that claims were defined.
Claims (5)
1. an intelligent group pulse generator comprises that control board (1), linear power supply (2), high voltage source (3), waveform loop (4), keypad (5) take place and show liquid crystal (6); Described keypad (5) provides operation signal to control board (1), and control board (1) transfer control signal shows corresponding data and figure to showing in the liquid crystal (6); Described linear power supply (2) produces dc power supply, offer control board (1) and high voltage source (3), high voltage source (3) produces high-pressure energy and flow in the waveform generation loop (4), it is characterized in that, the impulse waveform that loop (4) output takes place described waveform outputs in the coupling network (7), and the output of described coupling network (7) divides six loop outputs by polarity switching circuit (8) back.
2. intelligent group pulse generator as claimed in claim 1, it is characterized in that, described control board (1) comprises the pulse frequency drive signal generation circuit, the high-voltage power voltage initialization circuit, the user profile memory circuit, outside relay drive circuit, with the keypad signal circuit, described pulse frequency drive signal generation circuit is provided with 14 bit string mouth data to digital-to-analogue DA chip by single-chip microcomputer, produce the analog voltage amount of 0V～5V, control VF electric voltage frequency conversion chip produces the pulse signal of corresponding frequencies, is connected to the electronic switch drive circuit behind the width by the monostable circuit regulating impulse again.
3. intelligent group pulse generator as claimed in claim 1 is characterized in that, described linear power supply (2) is the output of low pressure drop three-terminal voltage-stabilizing Guan Gongwu road, and all not altogether.
4. intelligent group pulse generator as claimed in claim 1 is characterized in that, described waveform loop (4) takes place comprises 12 groups of electrochemical capacitors series connection of employing, is combined into voltage and reaches 5400V, the high-voltage energy storage capacitor C1 of the about 5uF of appearance value; Each electric capacity big resistance resistance R 1 usefulness all in parallel so that high-pressure uniform be distributed on each electrochemical capacitor; Storage capacitor C1 gives the half-breadth capacitor C 2 chargings by charging resistor R2, gives discharge resistance R4 discharge by discharge switch T; Discharge resistance R4 is 47 ohm of cement resistors of three series connection.
5. intelligent group pulse generator as claimed in claim 1, it is characterized in that, the inner magnet ring that the 1mH inductance value of having an appointment is set of described polarity switching circuit (8), be connected to coupling network, the electric current major part flow through discharge resistance when this magnet ring provided very big high-frequency resistance to discharge in order to negative polarity, and the electric current of the polarity switching circuit of flowing through is minimum, satisfies and the same discharge loop of positive polarity, and the variation that the negative polarity waveform is taken place is very little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200075601U CN201985826U (en) | 2011-01-12 | 2011-01-12 | Intelligent grouped pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200075601U CN201985826U (en) | 2011-01-12 | 2011-01-12 | Intelligent grouped pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985826U true CN201985826U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200075601U Expired - Lifetime CN201985826U (en) | 2011-01-12 | 2011-01-12 | Intelligent grouped pulse generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201985826U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618520A (en) * | 2013-12-03 | 2014-03-05 | 上海三基电子工业有限公司 | High-voltage fast-rising pulse generator and pulse generation method |
| CN104092464A (en) * | 2014-07-02 | 2014-10-08 | 苏州中盛纳米科技有限公司 | Voltage-to-frequency converter |
| CN105467178A (en) * | 2016-02-05 | 2016-04-06 | 中国电子科技集团公司第四十研究所 | Impulse interference generation device |
-
2011
- 2011-01-12 CN CN2011200075601U patent/CN201985826U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618520A (en) * | 2013-12-03 | 2014-03-05 | 上海三基电子工业有限公司 | High-voltage fast-rising pulse generator and pulse generation method |
| CN103618520B (en) * | 2013-12-03 | 2016-09-21 | 上海三基电子工业有限公司 | High pressure fast-rising pulse generator and pulse generation and method |
| CN104092464A (en) * | 2014-07-02 | 2014-10-08 | 苏州中盛纳米科技有限公司 | Voltage-to-frequency converter |
| CN105467178A (en) * | 2016-02-05 | 2016-04-06 | 中国电子科技集团公司第四十研究所 | Impulse interference generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |