CN203984263U - Rectification commutation circuit - Google Patents
Rectification commutation circuit Download PDFInfo
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- CN203984263U CN203984263U CN201420219476.XU CN201420219476U CN203984263U CN 203984263 U CN203984263 U CN 203984263U CN 201420219476 U CN201420219476 U CN 201420219476U CN 203984263 U CN203984263 U CN 203984263U
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Abstract
The utility model relates to a kind of commutation circuit, relates in particular to a kind of rectification commutation circuit of high-low pressure operating state.Rectification commutation circuit, output T1, the T3 of transformer T connects the ac input end of rectification circuit, the direct-flow positive voltage output output positive voltage of rectification circuit, the output T2 of transformer T connects the negative pole of diode D5, control signal port Q1 is connected with the grid of field effect transistor N1, the negative DC voltage output of rectification circuit is connected with the source electrode of field effect transistor N1, and field effect transistor N1 drain electrode is exported negative voltage with the common port of diode D5 positive pole.The utility model is simple in structure, and circuit operates steadily reliably, and the high-low pressure of having realized electric power output voltage switches, and has reduced the energy loss of circuit.
Description
technical field
The utility model relates to a kind of commutation circuit, relates in particular to a kind of rectification commutation circuit of high-low pressure operating state.
background technology
Along with the needs of people's life, electric automatic control is widely used.At present, a lot of electrical equipment all will have high-pressure work state and low pressure holding state, and electric appliance load needs larger operating power in working order, needs less operating power in holding state load.Also have a lot of electrical equipment under two kinds of voltages, to carry out work, and need to constantly change.It is particularly important that the switching of hi-lo circuit just becomes.Current have a diverter switch, but be all to carry out in the situation that electric power output voltage is constant, and to carry out the power consumption of hi-lo circuit switching large for circuit like this, and complex circuit designs is fragile, affects the useful life of product.
summary of the invention
The utility model is exactly for the problems referred to above, and a kind of brand-new circuit is provided, and new circuit can not only complete the switching that realizes power supply output high and low pressure, and simple in structure, design ingenious, long service life, can also greatly reduce energy consumption.
The technical scheme that the utility model provides is:
Rectification commutation circuit, output T1, the T3 of transformer T connects the ac input end of rectification circuit, the direct-flow positive voltage output output positive voltage of rectification circuit, the output T2 of transformer T connects the negative pole of diode D5, control signal port Q1 is connected with the grid of field effect transistor N1, the negative DC voltage output of rectification circuit is connected with the source electrode of field effect transistor N1, and field effect transistor N1 drain electrode is exported negative voltage with the common port of diode D5 positive pole.The direct-flow positive voltage output of rectification circuit is positive voltage with respect to field effect transistor N1 drain electrode with the common port of diode D5 positive pole, and field effect transistor N1 drain electrode is negative voltage with the common port of diode D5 positive pole with respect to the direct-flow positive voltage output of rectification circuit.
Concrete, described rectification circuit is rectifier bridge.
Described rectification commutation circuit, output T1, the T3 of transformer T connects the ac input end of rectification circuit, the direct-flow positive voltage output output positive voltage of rectification circuit, the output T2 of transformer T connects the source electrode of field effect transistor N2, the negative DC voltage output of rectification circuit connects the source electrode of field effect transistor N2, the grid connection control signal port Q2 of field effect transistor N2, the grid connection control signal port Q1 of field effect transistor N1, field effect transistor N1 drain electrode is exported negative voltage with the common port of field effect transistor N2 drain electrode.
Concrete, described rectification circuit is rectifier bridge.
The utility model is simple in structure, and design concept is ingenious, and circuit operates steadily reliably, and the rectification that has realized electric power output voltage is switched, and has reduced the energy loss of circuit, easy to use and safeguard, has extended the useful life of product.The utility model can be widely used in inverter, charger, switch power supply.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1
Fig. 2 is the structural representation of embodiment 2
Embodiment
embodiment 1
As shown in Figure 1: rectification commutation circuit.The output T1 of transformer T connects the common port of diode D1 and diode D4, and the output T3 of transformer T connects the common port of diode D2 and diode D3, and the output T2 of transformer T is connected with the negative pole of diode D5.
Diode D1, diode D2, diode D3 and diode D4 composition rectifier circuit.
The common port of diode D4 and diode D3 is the direct-flow positive voltage output of rectifier bridge, and is connected with load L.The load L other end is connected with the positive pole of diode D5 and the drain electrode of field effect transistor N1 respectively.
The common port of diode D1 and diode D2 is the negative DC voltage output of rectifier bridge, and is connected with the source electrode of field effect transistor N1.The grid of field effect transistor N1 is connected with control signal port Q1.
Control signal port Q1 is high potential with respect to the source electrode of field effect transistor N1: field effect transistor N1 conducting, when the output T1 of transformer T is positive phase, the sense of current flows to the output T3 of transformer T by field effect transistor N1, diode D2 through load L, flow to load L through output T1, the diode D4 of transformer T; Field effect transistor N1 conducting, when the output T3 of transformer T is positive phase, the sense of current flows to the output T1 of transformer T by field effect transistor N1, diode D1 through load L, flow to load L through output T3, the diode D3 of transformer T.
Control signal port Q1 is electronegative potential with respect to the source electrode of field effect transistor N1: not conducting of field effect transistor N1, diode D5 conducting, when the output T1 of transformer T is positive phase, the sense of current flows to the output T2 of transformer T by diode D5 through load L, flow to load L through output T1, the diode D4 of transformer T; Field effect transistor N1 closes, diode D5 conducting, and when the output T3 of transformer T is positive phase, the sense of current flows to the output T2 of transformer T by diode D5 through load L, flow to load L through output T3, the diode D3 of transformer T.
Its operation principle is exactly the switching that reaches full-bridge type rectification and semibridge system rectification with conducting of closing by N1, and output voltage when full-bridge type rectification is a times of output voltage of semibridge system rectification, when N1 conducting, is full-bridge type rectification, is semibridge system rectification when N1 closes.
embodiment 2
As shown in Figure 2: rectification commutation circuit.The output T1 of transformer T connects the common port of diode D1 and diode D4, and the output T3 of transformer T connects the common port of diode D2 and diode D3, and the output T2 of transformer T is connected with the source electrode of field effect transistor N2.
Diode D1, diode D2, diode D3 and diode D4 composition rectifier circuit.
The common port of diode D4 and diode D3 is the direct-flow positive voltage output of rectifier bridge, and is connected with load L.The load L other end connects respectively the drain electrode of field effect transistor N1 and the drain electrode of field effect transistor N2.
The common port of diode D1 and diode D2 is the negative DC voltage output of rectifier bridge, and is connected with the source electrode of field effect transistor N1.
The grid of field effect transistor N1 is connected with control signal port Q1, and the grid of field effect transistor N2 is connected with control signal port Q2.
Control signal port Q1 is high potential with respect to the source electrode of field effect transistor N1, control signal port Q2 is electronegative potential with respect to the source electrode of field effect transistor N2: field effect transistor N1 conducting, not conducting of field effect transistor N2, when the output T1 of transformer T is positive phase, the sense of current flows to the output T3 of transformer T by field effect transistor N1, diode D2 through load L, flow to load L through output T1, the diode D4 of transformer T; Field effect transistor N1 conducting, not conducting of field effect transistor N2, when the output T3 of transformer T is positive phase, the sense of current flows to the output T1 of transformer T by field effect transistor N1, diode D1 through load L, flow to load L through output T3, the diode D3 of transformer T.
Control signal port Q2 is high potential with respect to the source electrode of field effect transistor N2, control signal port Q1 is electronegative potential with respect to the source electrode of field effect transistor N1: not conducting of field effect transistor N1, field effect transistor N2 conducting, when the output T1 of transformer T is positive phase, the sense of current flows to the output T2 of transformer T by field effect transistor N2 through load L, flow to load L through output T1, the diode D4 of transformer T; Not conducting of field effect transistor N1, field effect transistor N2 conducting, when the output T3 of transformer T is positive phase, the sense of current flows to the output T2 of transformer T by field effect transistor N2 through load L, flow to load L through output T3, the diode D3 of transformer T.
Its operation principle is exactly the switching that reaches full-bridge type rectification and semibridge system rectification with conducting of closing by N1, output voltage when full-bridge type rectification is a times of output voltage of semibridge system rectification, N1 conducting N2 is full-bridge type rectification while closing, it when N1 closes N2 conducting, is semibridge system rectification, field effect transistor N1, N2 conducting simultaneously, but can alternate conduction, field effect transistor N1, N2 close whole rectification circuit simultaneously and just quit work.
Claims (4)
1. rectification commutation circuit, it is characterized in that, output T1, the T3 of transformer T connects the ac input end of rectification circuit, the direct-flow positive voltage output output positive voltage of rectification circuit, the output T2 of transformer T connects the negative pole of diode D5, control signal port Q1 is connected with the grid of field effect transistor N1, and the negative DC voltage output of rectification circuit is connected with the source electrode of field effect transistor N1, and field effect transistor N1 drain electrode is exported negative voltage with the common port of diode D5 positive pole.
2. rectification commutation circuit according to claim 1, is characterized in that, described rectification circuit is rectifier bridge.
3. rectification commutation circuit according to claim 1, it is characterized in that, output T1, the T3 of transformer T connects the ac input end of rectification circuit, the direct-flow positive voltage output output positive voltage of rectification circuit, the output T2 of transformer T connects the source electrode of field effect transistor N2, the negative DC voltage output of rectification circuit connects the source electrode of field effect transistor N2, the grid connection control signal port Q2 of field effect transistor N2, the grid connection control signal port Q1 of field effect transistor N1, field effect transistor N1 drain electrode is exported negative voltage with the common port of field effect transistor N2 drain electrode.
4. rectification commutation circuit according to claim 3, is characterized in that, described rectification circuit is rectifier bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219476.XU CN203984263U (en) | 2014-05-04 | 2014-05-04 | Rectification commutation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219476.XU CN203984263U (en) | 2014-05-04 | 2014-05-04 | Rectification commutation circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203984263U true CN203984263U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420219476.XU Expired - Lifetime CN203984263U (en) | 2014-05-04 | 2014-05-04 | Rectification commutation circuit |
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| CN (1) | CN203984263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635696A (en) * | 2018-06-25 | 2019-12-31 | 台达电子工业股份有限公司 | Power switching circuit and switching method |
-
2014
- 2014-05-04 CN CN201420219476.XU patent/CN203984263U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635696A (en) * | 2018-06-25 | 2019-12-31 | 台达电子工业股份有限公司 | Power switching circuit and switching method |
| US10862400B2 (en) | 2018-06-25 | 2020-12-08 | Delta Electronics, Inc. | Resonant power converter and switching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rectifier switching circuit Effective date of registration: 20201126 Granted publication date: 20141203 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: PUYANG LIYUAN AUTO ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2020980008479 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210930 Granted publication date: 20141203 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: PUYANG LIYUAN AUTO ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2020980008479 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rectifier switching circuit Effective date of registration: 20211009 Granted publication date: 20141203 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: PUYANG LIYUAN AUTO ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2021980010459 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221021 Granted publication date: 20141203 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: PUYANG LIYUAN AUTO ELECTRIC APPLIANCE CO.,LTD. Registration number: Y2021980010459 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |