CN209692614U - A kind of straight translation circuit of single input and multi-output - Google Patents
A kind of straight translation circuit of single input and multi-output Download PDFInfo
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- CN209692614U CN209692614U CN201920698637.0U CN201920698637U CN209692614U CN 209692614 U CN209692614 U CN 209692614U CN 201920698637 U CN201920698637 U CN 201920698637U CN 209692614 U CN209692614 U CN 209692614U
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- 230000001131 transforming effect Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 230000009466 transformation Effects 0.000 claims description 13
- 230000006837 decompression Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of straight translation circuits of single input and multi-output, it include basic waveform circuit, voltage-multiplying circuit, transforming circuit and current rectifying and wave filtering circuit, the basic waveform circuit is connect with voltage-multiplying circuit and transforming circuit respectively, current rectifying and wave filtering circuit is connect with voltage-multiplying circuit and transforming circuit respectively, the voltage-multiplying circuit has specifically included multipair diode, resistance and several capacitors, with basic waveform circuit connection at connect current-limiting resistance after, be divided into multichannel respectively with capacitance connection, a pair of diodes opposite with setting direction connection again, grounding connection after the input terminal and capacitance connection of the not connected side of diode, the output end that diode is not connected with side is directly grounded connection.By being additionally arranged transforming circuit and voltage-multiplying circuit during output, three required direct current outputs can be easily obtained from the DC voltage inputted all the way, reduce the component loss of one-to-one output circuit in the prior art, improves electric energy efficiency, reduce the use of electrical component.
Description
Technical field
The utility model relates to circuit design field, in particular to a kind of circuit knot of the single output multi output directly directly converted
Structure.
Background technique
At present in system-level circuit design, when DC voltage in need of different voltages is powered, system power supply
It is generally all completed by multiple DC-DC conversion circuits, different voltage requirements will be corresponding with different DC-DC power supply circuit lists
Member carries out the acquisition of required voltage by different voltage conversion circuits.And existing DC-DC voltage conversion circuit all only has
Voltage output all the way must be completed jointly, quite if obtaining the different voltage of multiple groups using multiple DC-DC element circuits
Design iterations are needed according to different output voltages in same circuit.
It is excessive that design iterations will lead to total system element, debugs relative difficulty, in addition also will increase being designed to for circuit
Sheet and manufacturing cost.
Summary of the invention
Problem to be solved in the utility model is how to solve in same system, needing for different voltage
Demand, need repeat be arranged same type single input and output circuit the problem of.
To solve the above-mentioned problems, the utility model provides a kind of straight translation circuit of single input and multi-output, including
Have basic waveform circuit, voltage-multiplying circuit, transforming circuit and a current rectifying and wave filtering circuit, the basic waveform circuit respectively with piezoelectricity again
Road is connected with transforming circuit, and current rectifying and wave filtering circuit is connect with voltage-multiplying circuit and transforming circuit respectively, and the voltage-multiplying circuit is specific
Include multipair diode, resistance and several capacitors, with basic waveform circuit connection at connect current-limiting resistance after, be divided into multichannel
It is connected respectively with capacitance connection, then a pair of diodes opposite with setting direction, diode is not connected with the input terminal and electricity of side
Hold grounding connection after connecting, the output end that diode is not connected with side is directly grounded connection.By utilizing multipair two in circuit
Pole pipe forms voltage-multiplying circuit, and the actual multiple that promoted of circuit can be configured by the way that different diode pairs is arranged, be examined
Consider circuit load, the multiple of promotion is no more than 4 times, and the voltage on basis can be obtained by basic waveform the regulation of electrical circuit
, so a basic voltage directly can be obtained using the circuit structure and according to more times of the basic voltage of voltage, reached
To the purpose of the multiple voltages of offer.
Preferably, transforming circuit includes voltage conversion inductance, the described voltage conversion inductance have an input terminal and
Two output ends, one of them is the fixation output end of 1:1, another is variable output end.Increase a voltage conversion inductance,
Can carry out transformation acquisition to required voltage can directly obtain from output end additionally by the output end of 1:1 fixed proportion
The voltage of basic waveform circuit can obtain the voltage of two output ends with this configuration.
Preferably, basic waveform circuit includes decompression transformation chip and peripheral circuit, and the peripheral circuit setting exists
Decompression transformation chip periphery can allow decompression transformation chip to work normally.Chip is occurred using relevant waveform, by chip
Parameter be adjusted, different output voltages can be obtained, the basis adjusted as subsequent voltage multiplication and transformation.
It preferably, further include having switching circuit, after the current rectifying and wave filtering circuit of voltage-multiplying circuit is arranged in the switching circuit,
The switching circuit includes triode, resistance and zener diode, the collector and circuit output end of the triode
Connection, the base stage of the triode, which is successively connect with resistance and zener diode, is followed by control signal, the triode
Transmitting extremely voltage output end.Switching circuit can control the application for changing road output, when not in use by control signal control
It turns off, improves the efficiency of integrated circuit.
This have it is below the utility model has the advantages that
1. saving circuit element.Because three voltage outputs can be obtained using a circuit design, from whole design
The use for reducing circuit element, reduces design cost.
2. improving power utilization rate.Circuit element uses less, so whole power consumption is reduced, whole utilization rate
It improves.
3. reducing design and debug time, failure rate is reduced.Because circuit element is reduced, what whole system debug was related to
Content is few, and faster, failure rate is smaller for debugging speed.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of the straight translation circuit of single input and multi-output of the utility model.
1 is PWM conversion circuit, and 2 be voltage conversion circuit, and 3 are negative voltage rectifier, and 4 be filter circuit, and 5, which are negative, presses off
Powered-down road.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It is easier to be readily appreciated by one skilled in the art with feature, to make apparent define to the protection scope of the utility model.
Embodiment 1
3 road voltage of the present embodiment circuit output, is 5V respectively, and 12V and all the way higher negative voltage -24V conduct add defeated
Voltage out.But this 3 road voltage is also possible to 5V, and 12V and all the way higher positive voltage 24V are as additional output voltage.
Circuit is made of 5 parts, and as shown in Fig. 1, the PWM conversion circuit 1 being made of U1 mainly includes DC-DC
Step-down conversion chip；Voltage conversion circuit 2 is mainly made of voltage conversion inductance；Negative pressure rectification circuit 3；Filtered electrical
Road 4；Negative pressure switch circuit 5.
U1 generates PWM square-wave voltage, the basic waveform voltage as entire conversion circuit.CE1, C1, D1, C2, C3, C4,
C5, C6, R1, R2, R3, D2 are the peripheral cells needed for U1 is worked normally, and can need to be adjusted according to the specification of U1
Installation.
In voltage conversion circuit 2, L1 be voltage conversion inductance, as buck DC-DC export energy storage inductor, the 3 of inductance
Foot and 2 feet are principal voltage and time voltage output end respectively, and 1 foot is PWM voltage input foot.Across the coil windings of 1 ~ 3 foot of inductance
As main winding, principal voltage is exported.Across the coil windings between 2 ~ 3 feet as time winding, time voltage is exported.The output of secondary winding
Voltage is determined by the coil ratio of major/minor winding, determines this turn ratio according to different secondary voltage values.3 foot of inductance is defeated
Principal voltage out is not necessarily to rectification circuit, and directly by C7, output is used to system after CE2, C8 filtering.Time electricity of 2 foot of inductance output
Pressure carries out current limliting by R6 after D3 is rectified, and by R7, filter circuit is output to after ZD1 pressure stabilizing, R7 is the current-limiting resistance of ZD1, together
When can also play the role of finely tuning time voltage value.C9, CE3, C10 are the filter capacitors of time voltage.
Negative pressure rectification circuit 3 is voltage-multiplying circuit, and additional output voltage is taken from the PWM switching frequency output pin of U1, also
It is the 1st foot of L1.This voltage is coupled to by R8 current limliting, then by capacitor C12, C14 by D4, D6, C13, the voltage multiplying rectifier of C15 composition
Circuit carries out voltage multiplying rectifier, and (D4, D6 are the diode combinations of integration packaging, and each combination is made of 2 diodes.It certainly can also
To use more separate diodes to form voltage doubling rectifing circuit), and required times is determined according to output voltage values actually required
Repoussage stream sum of series multiplication of voltage voltage value (can be 2 multiplication of voltages, 3 multiplication of voltages, 4 multiplication of voltages etc., the quantity of rectifier diode also increase accordingly i.e.
Can).R9 is current-limiting resistance, and CE4, C16 are auxiliary voltage filter capacitors.
Filter circuit 4 is current rectifying and wave filtering circuit, mainly plays and the voltage of output is rectified and filtered.
Negative pressure switch circuit 5 is switching circuit, when using additional output voltage, to reduce power consumption, improves DC-DC circuit
Efficiency, a negative voltage control switch circuit can be increased, by Q1, the circuit of R10, ZD2 composition, negative pressure switch circuit is mainly
The power that integrated circuit is reduced when negative voltage power supply or system preparation is not needed temporarily for system.
At work, integrated circuit takes electricity from VCC first, defeated from 3 ends after transformation into the transformation for carrying out waveform in U1
Out, the voltage that the present embodiment adopts U1 output is 12V.Wherein circuit can be defeated with the buck DC-DC of voltage conversion circuit 2 all the way
The input terminal connection of energy storage inductor out, is exported after transformation by 3 ends, and the voltage of output is 5V, and the portion voltage is through filtering
It is exported after the circuit of wave circuit 4.2 end of the other end of transformer, because the number of turns ratio with 1 end is 1:1, at transformation
Reason, is consistent after the output at 2 ends with original voltage, is 12V, the electricity of 12V is exported after the circuit of filter circuit 4
Pressure.
In one end of U1 output, there are also in addition all the way with 3 circuit connection of negative pressure rectification circuit, which passes through respectively
After two capacitor C12 and C14 in parallel, it is arranged respectively with 2 directions in the circuit of two groups of opposite diode, forms times repoussage
The effect of stream.Finally after the circuit of filter circuit 4, it is connect with the switching circuit of negative pressure switch circuit 5.
In the case where not needing the voltage-multiplying circuit, switching circuit is in close state, which can not be connected at Q1.It is needing
When the road Yao Gai is connected, after applying P_CTRL signal to control terminal, switching circuit conducting, the circuit of multiplication of voltage can be smoothly connected, to
Outer offer negative pressure.
Above in conjunction with attached drawing, the embodiments of the present invention is explained in detail, but the utility model and unlimited
It, within the knowledge of a person skilled in the art, can also be not depart from this practical new in above embodiment
Various changes can be made under the premise of type objective.
Claims (4)
1. a kind of straight translation circuit of single input and multi-output, which is characterized in that include basic waveform circuit, voltage-multiplying circuit,
Transforming circuit and current rectifying and wave filtering circuit, the basic waveform circuit are connect with voltage-multiplying circuit and transforming circuit respectively, rectification filter
Wave circuit is connect with voltage-multiplying circuit and transforming circuit respectively, the voltage-multiplying circuit specifically included multipair diode, resistance and
Several capacitors, with basic waveform circuit connection at connect current-limiting resistance after, be divided into multichannel respectively with capacitance connection, then with setting
Contrary a pair of diodes connects, grounding connection after the input terminal and capacitance connection of the not connected side of diode, diode
The output end of not connected side is directly grounded connection.
2. a kind of straight translation circuit of single input and multi-output according to claim 1, which is characterized in that the transformation
Circuit includes voltage conversion inductance, and the voltage conversion inductance has an input terminal and two output ends, one of them
For the fixation output end of 1:1, another is variable output end.
3. a kind of straight translation circuit of single input and multi-output according to claim 1, which is characterized in that the basis
Waveform circuit includes decompression transformation chip and peripheral circuit, and the peripheral circuit is arranged in decompression transformation chip periphery, energy
Decompression transformation chip is enough allowed to work normally.
4. a kind of straight translation circuit of single input and multi-output according to claim 1, which is characterized in that further include having out
Powered-down road, after the current rectifying and wave filtering circuit of voltage-multiplying circuit is arranged in the switching circuit, the switching circuit includes three poles
Pipe, resistance and zener diode, the collector of the triode are connect with circuit output end, the base stage of the triode according to
Secondary connect with resistance and zener diode is followed by control signal, the transmitting of the triode extremely voltage output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698637.0U CN209692614U (en) | 2019-05-16 | 2019-05-16 | A kind of straight translation circuit of single input and multi-output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698637.0U CN209692614U (en) | 2019-05-16 | 2019-05-16 | A kind of straight translation circuit of single input and multi-output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209692614U true CN209692614U (en) | 2019-11-26 |
Family
ID=68608916
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920698637.0U Expired - Fee Related CN209692614U (en) | 2019-05-16 | 2019-05-16 | A kind of straight translation circuit of single input and multi-output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209692614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022027744A1 (en) * | 2020-08-07 | 2022-02-10 | 厦门能瑞康电子有限公司 | Separately-excited micro-power module |
-
2019
- 2019-05-16 CN CN201920698637.0U patent/CN209692614U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022027744A1 (en) * | 2020-08-07 | 2022-02-10 | 厦门能瑞康电子有限公司 | Separately-excited micro-power module |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 |