CN206743111U - Has the power supply changeover device of self-powered controlling mechanism - Google Patents
Has the power supply changeover device of self-powered controlling mechanism Download PDFInfo
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- CN206743111U CN206743111U CN201720600904.7U CN201720600904U CN206743111U CN 206743111 U CN206743111 U CN 206743111U CN 201720600904 U CN201720600904 U CN 201720600904U CN 206743111 U CN206743111 U CN 206743111U
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- power supply
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- changeover device
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Abstract
A kind of power supply changeover device for having self-powered controlling mechanism, it has an input voltage feeding unit, a transformer, a secondary side current rectifying and wave filtering circuit, a first switch, a second switch, a diode, an electric capacity and a control unit, wherein, when the control unit makes the first switch and the second switch is both turned on, the input voltage feeding unit charges to a master winding of the transformer；When the control unit turns on the first switch and disconnects the second switch, the master winding is released energy to the electric capacity through the diode to produce a supply voltage of the control unit；And when the control unit makes the first switch and the second switch disconnects, the transformer releases energy to the secondary side current rectifying and wave filtering circuit via a secondary side winding.
Description
Technical field
The utility model is related to a kind of power supply changeover device, turns more particularly to a kind of power supply for having self-powered controlling mechanism
Parallel operation.
Background technology
Fig. 1 is refer to, it illustrates the block diagram of an existing power supply converter.As shown in figure 1, the power supply changeover device has one
Input voltage feeding unit 10, a transformer 20, a secondary side current rectifying and wave filtering circuit 30, one switch 40, one control unit 50, one
The electric capacity 70 of diode 60 and one.
Input voltage feeding unit 10 is providing an input voltage Vin, and its energy source can be an AC power or one
Battery module.
Transformer 20 has a master winding 21, a secondary side winding 22 and an assists winding 23, and the one of master winding 21
Input A and input voltage VinCoupling, an output end B and the coupling of switch 40 of master winding；The both ends of secondary side winding 22
C, D then couples with secondary side current rectifying and wave filtering circuit 30；And a connection end E of assists winding 23 couples with diode 60, and its
Another connection end F then couples with a reference ground.
Secondary side current rectifying and wave filtering circuit 30 and described both ends C, D of secondary side winding 22 are coupled to provide a rectification and filtering
Function.
Switch 40, it can be bipolar junction transistor or a metal-oxide half field effect transistor, there is a control terminal, a channel
Input and a channel output, the control terminal and a drive voltage signal VGCoupling, the path input and master winding 21
Output end B coupling, the channel output end then with the reference ground couple.
Control unit 50 has an energization input and a drive voltage signal output end, the energization input and electric capacity 70
One end couple to receive a supply voltage VCC, the drive voltage signal output end is then providing the drive voltage signal
VG, wherein, as drive voltage signal VGDuring in an active state, switch 40 is switched on and makes the described defeated of master winding 21
Go out to hold B to be coupled to the reference ground, so that input voltage VinMaster winding 21 is charged；As drive voltage signal VGIt is in
One not active state when, switch 40 be disconnected and make transformer 20 via secondary side winding 22 release energy give secondary side rectification filter
Wave circuit 30.
Diode 60 has an anode and a negative electrode, and the anode and the connection end E of assists winding 23 are coupled, the negative electrode
Then coupled with electric capacity 70.
Electric capacity 70 has a first end and one second end, and the first end and the negative electrode of diode 60 couple, and this
Two ends couple with the reference ground.
In operation, diode 60 and electric capacity 70 can provide the function of a rectification and filtering so that assists winding 23 to be provided
Energy change into the supply voltage VCC。
However, with regard to the existing power supply converter for the power supply mechanism of control unit 50, its circuit complexity and cost
Still there is improved space.
Foregoing to solve the problems, such as, this area needs the power supply changeover device of a novel tool self-powered controlling mechanism badly.
Utility model content
A purpose of the present utility model is to disclose a kind of power supply changeover device for having self-powered controlling mechanism, and it is in a transformation
A supply voltage is inserted between the master winding charging period of device and a secondary side winding electric discharge period and establishes period, so that should
Master winding can establish period in the supply voltage and be released energy by a current path to an electric capacity, so as to provide a direct current
Press the control unit to the power supply changeover device.
Another object of the present utility model is to disclose a kind of power supply changeover device for having self-powered controlling mechanism, and it can be one
One charging period of one master winding of transformer terminate after by a diode provide the master winding one release can path with
A DC voltage is established on one electric capacity, so as to supply electricity to a control unit of the power supply changeover device.
To be suggested up to object defined above, a kind of power supply changeover device for having self-powered controlling mechanism, it has：
One input voltage feeding unit, to provide an input voltage；
One transformer, there is a master winding and a secondary side winding, an input and the input electricity of the master winding
Pressure coupling；
One secondary side current rectifying and wave filtering circuit, coupled with the both ends of the secondary side winding；
One first switch, there is one first control terminal, a first passage input and a first passage output end, this first
Control terminal couples with one first drive voltage signal, and an output end of the first passage input and the master winding couples；
One second switch, there is one second control terminal, a second channel input and a second channel output end, this second
Control terminal couples with one second drive voltage signal, the second channel input and the first passage output end of the first switch
Coupling, and the second channel output end couples with a reference ground；
One diode, has an anode and a negative electrode, and the anode and the first passage output end of the first switch couple；
One electric capacity, has a first end and one second end, and the first end and the negative electrode of the diode couple, and this
Two ends couple with the reference ground；And
One control unit, there is an energization input and two drive voltage signal output ends, the energization input and the electricity
The first end held is coupled to receive a supply voltage, and the two drive voltage signals output end first is driven to provide this
Dynamic voltage signal and second drive voltage signal.
In one embodiment, the diode is made up of a NPN transistor, the NPN transistor have a collector, a base stage and
One emitter-base bandgap grading, the base stage are coupled to use the anode of the diode as with the collector, and the emitter-base bandgap grading uses described the moon of the diode as
Pole.
In one embodiment, the diode is made up of a PNP transistor, the PNP transistor have an emitter-base bandgap grading, a base stage and
One collector, the emitter-base bandgap grading use the anode of the diode as, and the base stage is coupled with the collector to use described the moon of the diode as
Pole.
In one embodiment, the diode is made up of a p-type MOS transistor, and the p-type MOS transistor has one
Source electrode, a grid and a drain electrode, the source electrode use the anode of the diode as, the grid coupled with the drain electrode with use as this two
The negative electrode of pole pipe.
In one embodiment, the diode is made up of a N-type MOS transistor, and the N-type MOS transistor has one
Drain electrode, a grid and a source electrode, the grid are coupled with the drain electrode to use the anode of the diode as, the source electrode use as this two
The negative electrode of pole pipe.
In one embodiment, there is the control unit mu balanced circuit to stablize the level of the supply voltage.
To enable your auditor to further appreciate that structure, feature and its purpose of the present utility model, schema and excellent is hereby accompanied by
The detailed description of specific embodiment is selected as after.
Brief description of the drawings
Fig. 1 illustrates the block diagram of an existing power supply converter.
Fig. 2 is the block diagram for the preferred embodiment of power supply changeover device one that the utility model has self-powered controlling mechanism.
Fig. 3 a illustrate a Fig. 2 first switch and a second switch is switched on and makes a master winding of a transformer
One output end is coupled to the reference ground, so that the equivalent circuit diagram that an input voltage charges to the master winding.
The first switch that Fig. 3 b illustrate Fig. 2 is switched on and the second switch is disconnected and makes the institute of the master winding
State output end and be coupled to one end of an electric capacity through a diode to produce the equivalent circuit diagram of a supply voltage.
Fig. 3 c illustrate Fig. 2 first switch and the second switch is disconnected and makes the transformer via one or two times
The equivalent circuit diagram that side winding releases energy to a secondary side current rectifying and wave filtering circuit.
Fig. 4 is the block diagram that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism.
Fig. 5 is the block diagram that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism.
Fig. 6 is the block diagram that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism.
Fig. 7 is the block diagram that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism.
Embodiment
Fig. 2 is refer to, it is the side for the preferred embodiment of power supply changeover device one that the utility model has self-powered controlling mechanism
Block figure.As shown in Fig. 2 the power supply changeover device of the tool self-powered controlling mechanism includes an input voltage feeding unit 100, a transformation
Device 110, a secondary side current rectifying and wave filtering circuit 120, a first switch 130, a second switch 140, a diode 150, an electric capacity
160 and a control unit 170.
Input voltage feeding unit 100 is providing an input voltage Vin, and its energy source can be an AC power or
One battery module.
Transformer 110 has a master winding 111 and a secondary side winding 112, an input A of master winding 111 with
Input voltage VinCoupling, an output end B and the first switch 130 of master winding couple；Two end C, D of secondary side winding 112
Then coupled with secondary side current rectifying and wave filtering circuit 120.
Secondary side current rectifying and wave filtering circuit 120 and described two ends C, D of secondary side winding 112 are coupled to provide a rectification and filter
Wave energy.
It first switch 130, can be bipolar junction transistor or a metal-oxide half field effect transistor, there is one first control
End, a first passage input and a first passage output end, first control terminal and one first drive voltage signal VG1Coupling,
The output end B of the first passage input and master winding 111 is coupled, and the first passage output end couples with second switch 140.
It second switch 140, can be bipolar junction transistor or a metal-oxide half field effect transistor, there is one second control
End, a second channel input and a second channel output end, second control terminal and one second drive voltage signal VG2Coupling,
The second channel input and the first passage output end of first switch 130 couple, and the second channel output end and one
Reference ground couples.
Diode 150 has an anode and a negative electrode, the anode and the first passage output end coupling of first switch 130
Connect, the negative electrode then couples with electric capacity 160.
Electric capacity 160 has a first end and one second end, and the first end and the negative electrode of diode 150 couple, and should
Second end couples with the reference ground.
Control unit 170 has an energization input and two drive voltage signal output ends, the energization input and electric capacity
160 first end is coupled to receive a supply voltage VCC, the two drive voltage signals output end to provide this first
Drive voltage signal VG1And second drive voltage signal VG2, wherein, as first drive voltage signal VG1And second driving
Voltage signal VG2When being in an active state, Fig. 3 a are refer to, first switch 130 and second switch 140 are switched on and made
The output end B of master winding 111 is coupled to the reference ground, so that input voltage VinMaster winding 111 is charged；When
First drive voltage signal VG1In the active state and second drive voltage signal VG2In a not active state
When, Fig. 3 b are refer to, first switch 130 is switched on and second switch 140 is disconnected and makes the output end of master winding 111
B is coupled to the first end of electric capacity 160 to produce the supply voltage V through diode 150CC；And when the first driving electricity
Press signal VG1And second drive voltage signal VG2When being in the not active state, Fig. 3 c, first switch 130 refer to
And second switch 140 is disconnected and transformer 110 is released energy via secondary side winding 112 and give secondary side rectifying and wave-filtering electricity
Road 120.
In addition, diode 150 can be by NPN transistor, PNP transistor, p-type MOS transistor or N-type gold oxygen semi-crystal
Pipe is formed.
Fig. 4 is refer to, it is the side that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism
Block figure.As shown in figure 4, the power supply changeover device of the tool self-powered controlling mechanism includes an input voltage feeding unit 100, a transformation
Device 110, a secondary side current rectifying and wave filtering circuit 120, a first switch 130, a second switch 140, the electricity of a NPN transistor 151, one
The control unit 170 of appearance 160 and one, wherein, NPN transistor 151 has a collector, a base stage and an emitter-base bandgap grading, the base stage and the collection
Pole is coupled to use the anode of a diode as, and the emitter-base bandgap grading uses the negative electrode of the diode as.
Fig. 5 is refer to, it is the side that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism
Block figure.As shown in figure 5, the power supply changeover device of the tool self-powered controlling mechanism includes an input voltage feeding unit 100, a transformation
Device 110, a secondary side current rectifying and wave filtering circuit 120, a first switch 130, a second switch 140, the electricity of a PNP transistor 152, one
The control unit 170 of appearance 160 and one, wherein, PNP transistor 152 has an emitter-base bandgap grading, a base stage and a collector, and the emitter-base bandgap grading uses one as
The anode of diode, the base stage are coupled with the collector to use the negative electrode of the diode as.
Fig. 6 is refer to, it is the side that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism
Block figure.As shown in fig. 6, the power supply changeover device of the tool self-powered controlling mechanism includes an input voltage feeding unit 100, a transformation
Device 110, a secondary side current rectifying and wave filtering circuit 120, a first switch 130, a second switch 140, a p-type MOS transistor
153rd, an electric capacity 160 and a control unit 170, wherein, p-type MOS transistor 153 has a source electrode, a grid and a leakage
Pole, the source electrode use the anode of a diode as, and the grid is coupled with the drain electrode to use the negative electrode of the diode as.
Fig. 7 is refer to, it is the side that the utility model has its another embodiment of the power supply changeover device of self-powered controlling mechanism
Block figure.As shown in fig. 7, the power supply changeover device of the tool self-powered controlling mechanism includes an input voltage feeding unit 100, a transformation
Device 110, a secondary side current rectifying and wave filtering circuit 120, a first switch 130, a second switch 140, a N-type MOS transistor
154th, an electric capacity 160 and a control unit 170, wherein, N-type MOS transistor 154 has a drain electrode, a grid and a source
Pole, the grid are coupled to use the anode of a diode as with the drain electrode, and the source electrode uses the negative electrode of the diode as.
In addition, control unit 170 can further have a mu balanced circuit to stablize the supply voltage VCCLevel.
By foregoing disclosed design, the utility model has the following advantages that：
1. the power supply changeover device of tool self-powered controlling mechanism of the present utility model can fill in a master winding of a transformer
A supply voltage is inserted between electric period and a secondary side winding electric discharge period and establishes period, so that the master winding can be in the confession
Piezoelectric voltage is established period and released energy by a current path to an electric capacity, and the power supply changeover device is given so as to provide a DC voltage
A control unit.
2. the power supply changeover device of tool self-powered controlling mechanism of the present utility model can be in a master winding of a transformer
One charging period terminate after by a diode provide the master winding one release can path to establish a direct current on an electric capacity
Pressure, so as to supply electricity to a control unit of the power supply changeover device.
This case those disclosed herein, be preferred embodiment, such as local change or modification and come from the technological thought of this case and
It is easy to the person of deducing by those skilled in the art, all the patent right category of not de- this case.
Claims (6)
1. a kind of power supply changeover device for having self-powered controlling mechanism, it has：
One input voltage feeding unit, to provide an input voltage；
One transformer, there is a master winding and a secondary side winding, an input of the master winding and the input voltage coupling
Connect；
One secondary side current rectifying and wave filtering circuit, coupled with the both ends of the secondary side winding；
One first switch, there is one first control terminal, a first passage input and a first passage output end, first control
End couples with one first drive voltage signal, and an output end of the first passage input and the master winding couples；
One second switch, there is one second control terminal, a second channel input and a second channel output end, second control
End couples with one second drive voltage signal, the second channel input and the first passage output end coupling of the first switch
Connect, and the second channel output end couples with a reference ground；
One diode, has an anode and a negative electrode, and the anode and the first passage output end of the first switch couple；
One electric capacity, there is a first end and one second end, the first end and the negative electrode of the diode couple, and second end
Coupled with the reference ground；And
One control unit, there is an energization input and two drive voltage signal output ends, the energization input and the electric capacity
The first end coupling is to receive a supply voltage, and the two drive voltage signals output end is electric to provide first driving
Press signal and second drive voltage signal.
2. the power supply changeover device of tool self-powered controlling mechanism as claimed in claim 1, wherein the diode is by a NPN transistor
Form, the NPN transistor has a collector, a base stage and an emitter-base bandgap grading, and the base stage is coupled with the collector to use the diode as
The anode, the emitter-base bandgap grading use the negative electrode of the diode as.
3. the power supply changeover device of tool self-powered controlling mechanism as claimed in claim 1, wherein the diode is by a PNP transistor
Form, the PNP transistor has an emitter-base bandgap grading, a base stage and a collector, and the emitter-base bandgap grading uses the anode of the diode, the base stage as
Coupled with the collector to use the negative electrode of the diode as.
4. the power supply changeover device of tool self-powered controlling mechanism as claimed in claim 1, the wherein diode are by a p-type gold oxygen half
Transistor is formed, and there is the p-type MOS transistor source electrode, a grid and a drain electrode, the source electrode to use the institute of the diode as
Anode is stated, the grid is coupled with the drain electrode to use the negative electrode of the diode as.
5. the power supply changeover device of tool self-powered controlling mechanism as claimed in claim 1, the wherein diode are by a N-type gold oxygen half
Transistor is formed, and the N-type MOS transistor has a drain electrode, a grid and a source electrode, and the grid is coupled with the drain electrode to fill
Make the anode of the diode, the source electrode uses the negative electrode of the diode as.
6. the power supply changeover device of tool self-powered controlling mechanism, the wherein control unit have a voltage stabilizing as claimed in claim 1
Circuit is to stablize the level of the supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600904.7U CN206743111U (en) | 2017-05-26 | 2017-05-26 | Has the power supply changeover device of self-powered controlling mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600904.7U CN206743111U (en) | 2017-05-26 | 2017-05-26 | Has the power supply changeover device of self-powered controlling mechanism |
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| CN206743111U true CN206743111U (en) | 2017-12-12 |
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| CN201720600904.7U Active CN206743111U (en) | 2017-05-26 | 2017-05-26 | Has the power supply changeover device of self-powered controlling mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098744A (en) * | 2018-01-30 | 2019-08-06 | 台达电子工业股份有限公司 | Auxiliary circuit and power adapter |
| CN110518790A (en) * | 2019-08-28 | 2019-11-29 | 南京微盟电子有限公司 | A kind of quick start and self-contained electric system of switching power converters |
-
2017
- 2017-05-26 CN CN201720600904.7U patent/CN206743111U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098744A (en) * | 2018-01-30 | 2019-08-06 | 台达电子工业股份有限公司 | Auxiliary circuit and power adapter |
| US10972093B2 (en) | 2018-01-30 | 2021-04-06 | Delta Electronics, Inc. | Auxiliary circuit and power converter |
| CN110098744B (en) * | 2018-01-30 | 2021-05-25 | 台达电子工业股份有限公司 | Auxiliary circuit and power converter |
| CN113224950A (en) * | 2018-01-30 | 2021-08-06 | 台达电子工业股份有限公司 | Auxiliary circuit and power converter |
| US11362654B2 (en) | 2018-01-30 | 2022-06-14 | Delta Electronics, Inc. | Auxiliary circuit |
| CN110518790A (en) * | 2019-08-28 | 2019-11-29 | 南京微盟电子有限公司 | A kind of quick start and self-contained electric system of switching power converters |
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Address after: 518000 1701, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen City, Guangdong Province Patentee after: Fuman microelectronics Group Co.,Ltd. Address before: 518048 Guangdong province Shenzhen city Futian District shennanxi road Che Kung Temple industrial district Tianan data Times Building 2403A-1 Patentee before: SHENZHEN FUMAN ELECTRONIC GROUP Co.,Ltd. |