CN206060548U - A kind of circuit for power conversion - Google Patents
A kind of circuit for power conversion Download PDFInfo
- Publication number
- CN206060548U CN206060548U CN201621122835.5U CN201621122835U CN206060548U CN 206060548 U CN206060548 U CN 206060548U CN 201621122835 U CN201621122835 U CN 201621122835U CN 206060548 U CN206060548 U CN 206060548U
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- Prior art keywords
- circuit
- switch
- power conversion
- former limit
- outfan
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Abstract
This utility model is related to power supply test field, particularly a kind of circuit for power conversion.Including transformator, first control circuit, second control circuit, filter circuit and rectification circuit；The transformator includes first former limit and the second former limit of parallel connection；The first control circuit is connected with the outfan of the first former limit；The second control circuit is connected with the outfan of the second former limit；The secondary of the transformator is connected with the rectification circuit by the filter circuit.In the circuit for power conversion that this utility model is provided, two former limits that transformator includes and connects, two former limits are respectively adopted anti-phase control signal control on or off；Meanwhile, the outfan of transformator is provided with filter circuit before rectification circuit, effectively reduces the spike of output circuit, improves ripple characteristics.
Description
Technical field
This utility model is related to power supply test field, particularly a kind of circuit for power conversion.
Background technology
Generally, when the test related to DC source is carried out, engineer must collect and configure multiple stage instrument, could be complete
Into direct current supply and measuring task.When these complex tasks are performed, multiple stage test instrunment may be connected to simultaneously, so as to increase
The risk of error；For this purpose, engineer may select the automatic test complicated more than manual test, although automatic test task
Manual errors can be reduced, but the research and development engineer write with debugging routine to having worked overloadingly further increases work
Amount.And the appearance of DC source analyser avoids engineer using the debugging that complexity is carried out before multiple devices and test.Electricity
Electric current of the source analyser by the measurable inflow DUT of its built-in electric current kinetic measurement ability, without such as current probe
With this kind of sensor of diverter；, without the need for exploitation control and process of measurement, institute is functional and measures all integrated for DC source analyser
In same equipment, without PC, driver and software, more than 90% is reduced equivalent to the workload related to setting；
Direct current supply and measurement test assignment that user then can be just completed with 2 day time using independent test equipment, using unidirectional current
Source analyser just be able to can be completed in 5 minutes.And it is usual, circuit tester module, oscillograph mould are integrated with DC source analyser
There is module, data recordin module and multiple DC power suppliers in block, random waveform, wherein, it is multiple with different output works
The DC power supplier of rate is undoubtedly one of most crucial device of power analysis instrument, and the circuit for power conversion of DC power supplier
Most crucial power convert task born even more, it is whether steady that the stability direct relation of the circuit module whole power module
It is fixed reliable.
Utility model content
Goal of the invention of the present utility model is the power conversion electricity for each power module in DC source analyser
A kind of demand of the road to stability, there is provided working stability, it is adaptable to the power conversion of particular power module in power analysis instrument
Circuit.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of circuit for power conversion, including transformator, first control circuit, second control circuit, filter circuit and rectification
Circuit；
The transformator includes first former limit and the second former limit of parallel connection；The first control circuit is defeated with the first former limit
Go out end connection；The second control circuit is connected with the outfan of the second former limit；The secondary of the transformator is by the filtering
Circuit is connected with the rectification circuit.
Circuit for power conversion in common power supply can't arrange the filter circuit before changing rectification circuit again, this practicality is new
In type, the effect of the filter circuit is the ripple for reducing transformator output, is carried out presetting before to transformer output signal rectification
Whole, the increase of the circuit sacrifices signal processing efficiency to a certain extent, but this utility model is arranged before rectification circuit
The circuit but effectively reduces the spike of output signal, allows the ripple of output signal to be much improved.
Further, the first control circuit includes the first shaping circuit, first switch and the first peak absorbing circuit；
The second control circuit includes the second shaping circuit, second switch and the second peak absorbing circuit；
The first switch is connected with the outfan of first former limit；The second switch is defeated with second former limit
Go out end connection；
The input of first shaping circuit receives the first control signal, and its outfan connects the control of the first switch
End processed；
The input of second shaping circuit receives the second control signal, and its outfan connects the control of the second switch
End processed；
First peak absorbing circuit is with the first switch and connects；Second peak absorbing circuit and described second
Switch and connect；
First control signal is anti-phase with second control signal；First control signal, the second control signal
For PWM anti-phase mutually；First shaping circuit and the second shaping circuit are respectively used to allow the first control signal, second to control
The rising edge of signal is more precipitous, so as to accelerate the response speed of first switch and second switch.
Further, first peak absorbing circuit and second peak absorbing circuit include and connect two are electric
Resistance and the electric capacity concatenated with this and two resistance connecing.
Further, the first switch, second switch are field effect transistor；The drain electrode of the first switch connects described first
The outfan of former limit, the source ground of the first switch；The drain electrode of the second switch connects the outfan of second former limit；
The source ground of the second switch.
Further, the circuit for power conversion also includes current collection circuit；The current collection circuit is arranged on institute
State the input of transformer primary side；
Further, the input of the input of the first former limit and second former limit access in parallel electric current is adopted
Collector.
Further, the current collection circuit is inductance；
Further, the filter circuit includes and connects first resistor, second resistance, 3rd resistor and the 4th resistance,
And the first electric capacity concatenated with the first resistor, second resistance, 3rd resistor and the 4th resistance；The filter circuit and institute
State the secondary of transformator and connect.
Further, the rectification circuit is bridge rectifier.
In sum, as a result of above-mentioned technical proposal, the beneficial effects of the utility model are：
In the circuit for power conversion that this utility model is provided, two former limits that transformator includes and connects, two former limit difference
Using anti-phase control signal control on or off；Meanwhile, the outfan of transformator is provided with filter circuit before rectification circuit,
The spike of output circuit is effectively reduced, ripple characteristics are improved.
In certain embodiments, rectification circuit is provided with control circuit, make the rising edge of control signal more precipitous, from
And accelerate the response speed of switch；Sharp wave absorbing circuit is additionally provided with control circuit, circuit characteristic is effectively improved, point is prevented
Ripple occurs.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 a are first control circuit structured flowcharts in this utility model.
Fig. 2 b are second control circuit structured flowcharts in this utility model.
Fig. 3 is circuit diagram of the present utility model.
Fig. 4 a are first control circuit circuit diagram specific embodiments in this utility model.
Fig. 4 b are second control circuit circuit diagram specific embodiments in this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit this utility model.
Embodiment 1：As Figure 1 and Figure 4, a kind of circuit for power conversion, including transformator T3, first control circuit 200,
Second control circuit 300, filter circuit 400 and rectification circuit 500；
The transformator T3 includes first former limit and the second former limit of parallel connection；The first control circuit 200 is former with first
The outfan connection on side；The second control circuit 300 is connected with the outfan of the second former limit；The secondary of the transformator T3 leads to
Cross the filter circuit 400 to be connected with the rectification circuit 500.
Circuit for power conversion in common power supply can't arrange the filter circuit 400 before changing rectification circuit 500 again, this
In utility model, the effect of the filter circuit 400 is the ripple for reducing transformator T3 outputs, whole to transformator T3 output signals
Pre-adjustment is carried out before stream, the increase of the circuit sacrifices signal processing efficiency, but this utility model to a certain extent whole
The spike that the circuit but effectively reduces output signal is set before current circuit 500, allows the ripple of output signal greatly to be changed
It is kind.
As shown in Fig. 2 a, Fig. 2 b, Fig. 4 a, Fig. 4 b, the first control circuit 200 includes the first shaping circuit 202, first
Switch Q1 and the first peak absorbing circuit 203；
The second control circuit 300 includes the second shaping circuit 302, second switch Q2 and the second peak absorbing circuit
303；
First switch Q1 is connected with the outfan 11 of first former limit；The second switch Q2 is former with described second
The outfan 1 on side connects；
The input of first shaping circuit 202 receives the first control signal MK1, and its outfan connection described first is opened
Close the control end of Q1；The input of second shaping circuit 302 receives the second control signal MK2, and its outfan connection is described
The control end of second switch Q2；First peak absorbing circuit 203 is with first switch Q1 and connects；Second spike is inhaled
Circuit 303 is with the second switch Q2 and connects for receipts；First shaping circuit 202 includes the 5th diode and the 6th that is anti-and connecing
Diode（The 5th diode and the 6th diode that D4 in Fig. 4 a represents that this is anti-and connects）, wherein, the 5th diode
Negative pole and positive pole short circuit, the input of the negative pole of the 6th diode for control signal MK1, the positive pole of the 6th diode are electric with the 6th
With the 5th resistance R5 and connect after resistance R6 concatenations；Likewise, second shaping circuit 302 include the 7th diode that is anti-and connecing and
8th diode（The 7th diode and the 8th diode that D5 in Fig. 4 b represents that this is anti-and connects）, wherein, the seven or two pole
The negative pole of pipe and positive pole short circuit, the input of the negative pole of the 8th diode for control signal MK2, the positive pole of the 8th diode and the
With the 11st resistance R11 and connect after 12 resistance R12 concatenations；
First control signal MK1 is anti-phase with second control signal MK2；First control signal MK1, second
Control signal MK2 is PWM anti-phase mutually；First shaping circuit 202 and the second shaping circuit 302 are respectively used to allow first
Control signal MK1, the second control signal MK2 rising edge it is more precipitous, so as to accelerate first switch Q1 and second switch Q2
Response speed.
Two resistance that first peak absorbing circuit 203 and second peak absorbing circuit 303 include and connect
And the electric capacity concatenated with this and two resistance connecing, i.e. the 7th resistance R7 that the first peak absorbing circuit 203 includes and connects and
8th resistance R8, meanwhile, the 3rd electric capacity C3 for also concatenating with the 7th resistance R7, the 8th resistance R8；Second peak absorbing circuit
303 the 9th resistance R9 for including and connecing and the tenth resistance R10, meanwhile, also concatenate with the 9th resistance R9, the tenth resistance R10
Second electric capacity C2；.
First switch Q1, second switch Q2 are field effect transistor；It is former that the drain electrode of first switch Q1 connects described first
The outfan 11 on side, the source ground of first switch Q1；The drain electrode of the second switch Q2 connects the defeated of second former limit
Go out end 1；The source ground of the second switch Q2.
The circuit for power conversion also includes current collection circuit 600；The current collection circuit 600 is arranged on the change
The input of depressor T3 former limits；
The input of the input of first former limit and second former limit is in parallel to access the current collection circuit. and it is excellent
Choosing, the current collection circuit is inductance；
First resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance that the filter circuit 400 includes and connects
R4, and the first electric capacity C1 concatenated with first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4；Institute
State the secondary of filter circuit 400 and the transformator T3 and connect.
In some embodiments, the rectification circuit 500 is bridge rectifier 500.
During work, PWM drive signal MK1, MK2 driving FET Q1, Q3 completes copped wave, T3 in the primary of transformator T3
It is secondary to be arrived before the bridge rectifier 500 of D7, D8, D9, D10 composition below, by C1, R1, R2, R3 by 5 feet, the output of 7 feet,
R4 is filtered to copped wave pulse, eliminates the spike in copped wave pulse, is conducive to rectifying and wave-filtering below to act on, is reduced output stricture of vagina
Ripple and noise.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (9)
1. a kind of circuit for power conversion, it is characterised in that including transformator, first control circuit, second control circuit, filtered electrical
Road and rectification circuit；
The transformator includes first former limit and the second former limit of parallel connection；The outfan of the first control circuit and the first former limit
Connection；The second control circuit is connected with the outfan of the second former limit；The secondary of the transformator passes through the filter circuit
It is connected with the rectification circuit.
2. circuit for power conversion according to claim 1, it is characterised in that the first control circuit includes the first shaping
Circuit, first switch and the first peak absorbing circuit；
The second control circuit includes the second shaping circuit, second switch and the second peak absorbing circuit；
The first switch is connected with the outfan of first former limit；The outfan of the second switch and second former limit
Connection；
The input of first shaping circuit receives the first control signal, and its outfan connects the control of the first switch
End；
The input of second shaping circuit receives the second control signal, and its outfan connects the control of the second switch
End；
First peak absorbing circuit is with the first switch and connects；Second peak absorbing circuit and the second switch
And connect；
First control signal is anti-phase with second control signal.
3. circuit for power conversion according to claim 2, it is characterised in that first peak absorbing circuit and described
Two peak absorbing circuits are included and two resistance connecing and the electric capacity concatenated with this and two resistance connecing.
4. circuit for power conversion according to claim 2, it is characterised in that the first switch, second switch are field effect
Ying Guan；The drain electrode of the first switch connects the outfan of first former limit, the source ground of the first switch；Described second
The drain electrode of switch connects the outfan of second former limit；The source ground of the second switch.
5. circuit for power conversion according to claim 1, it is characterised in that the circuit for power conversion is also adopted including electric current
Collector；The current collection circuit is arranged on the input of the transformer primary side.
6. circuit for power conversion according to claim 5, it is characterised in that the input of first former limit and described
The input of two former limits is in parallel to access the current collection circuit.
7. circuit for power conversion according to claim 5, it is characterised in that the current collection circuit is inductance.
8. circuit for power conversion according to claim 1, it is characterised in that it is first electric that the filter circuit includes and connects
Resistance, second resistance, 3rd resistor and the 4th resistance, and with the first resistor, second resistance, 3rd resistor and the 4th resistance
First electric capacity of concatenation；The secondary of the filter circuit and the transformator simultaneously connects.
9. circuit for power conversion according to claim 1, it is characterised in that the rectification circuit is bridge rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122835.5U CN206060548U (en) | 2016-10-14 | 2016-10-14 | A kind of circuit for power conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122835.5U CN206060548U (en) | 2016-10-14 | 2016-10-14 | A kind of circuit for power conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060548U true CN206060548U (en) | 2017-03-29 |
Family
ID=58363990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621122835.5U Withdrawn - After Issue CN206060548U (en) | 2016-10-14 | 2016-10-14 | A kind of circuit for power conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206060548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300994A (en) * | 2016-10-14 | 2017-01-04 | 成都前锋电子仪器有限责任公司 | A kind of circuit for power conversion |
-
2016
- 2016-10-14 CN CN201621122835.5U patent/CN206060548U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300994A (en) * | 2016-10-14 | 2017-01-04 | 成都前锋电子仪器有限责任公司 | A kind of circuit for power conversion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170329 Effective date of abandoning: 20180907 |
|
| AV01 | Patent right actively abandoned |