CN204481704U - A kind of current rectifying and wave filtering circuit of threephase switch power supply front end - Google Patents
A kind of current rectifying and wave filtering circuit of threephase switch power supply front end Download PDFInfo
- Publication number
- CN204481704U CN204481704U CN201420821594.8U CN201420821594U CN204481704U CN 204481704 U CN204481704 U CN 204481704U CN 201420821594 U CN201420821594 U CN 201420821594U CN 204481704 U CN204481704 U CN 204481704U
- Authority
- CN
- China
- Prior art keywords
- diode
- negative pole
- resistance
- voltage
- positive pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Rectifiers (AREA)
Abstract
The utility model is applicable to small-power threephase switch field of power supplies, and provide a kind of current rectifying and wave filtering circuit of threephase switch power supply front end, external power input A, B are connected full-wave rectifying circuit with external power input C; Diode D1, D3 are connected with the negative pole of diode D5 to be a little connected with the positive pole of diode D6 with diode D2, D4 after voltage stabilizing didoe D9 through resistance R6 and are a little connected; Diode D1, D3 be connected with the negative pole of diode D5 be a little also connected metal-oxide-semiconductor Q1 drain electrode be connected, the grid of metal-oxide-semiconductor Q1 is connected with the tie point of voltage-stabiliser tube D9 with resistance R6, the source electrode of metal-oxide-semiconductor Q1 connects the positive pole of diode D8, the negative pole of diode D8 is connected with power output end OUT+, is also serially connected with resistance R5 between the grid of metal-oxide-semiconductor Q1 and source electrode; External power input N is connected with the positive pole of diode D7 after resistance R1, and the negative pole of diode D7 connects power output end OUT+; Electric capacity C1 is serially connected with between power output end OUT+ and power output end OUT-.Automatically can carry out halfwave rectifier or full-wave rectification according to the mode of connection of access power supply and electric pressure, export the voltage of appropriate voltage range.
Description
Technical field
The utility model belongs to small-power threephase switch field of power supplies, particularly relates to a kind of current rectifying and wave filtering circuit of threephase switch power supply front end.
Background technology
For three-phase AC-DC Switching Power Supply, first three-phase and four-line or phase three-wire three ac voltage rectifier are filtered into direct voltage, then DC-DC conversion are carried out to direct voltage, thus realize Power convert.
Three phase rectifier kind is a lot, and the commutation technique being generally used for small-power AC-DC Switching Power Supply is: uncontrollable halfwave rectifier and uncontrollable full-wave rectification.
Half-wave rectifying circuit carries out rectification to phase voltage, and the direct voltage after rectification is lower, thus reduces the intractability to rear class Switching Power Supply; But halfwave rectifier can not lack zero line, therefore use field relatively less.
Full-wave rectifying circuit can carry out rectification to line voltage, also can carry out rectification to phase voltage, uses field more; But voltage is higher after full-wave rectification, there is higher requirement of withstand voltage to electric capacity, MOSFET pipe etc. in rear class switching power circuit, add Switching Power Supply development difficulty, improve production cost.
Utility model content
The utility model is for the deficiencies in the prior art, provides a kind of embodiment of current rectifying and wave filtering circuit of threephase switch power supply front end.
The utility model embodiment is achieved in that a kind of current rectifying and wave filtering circuit of threephase switch power supply front end, and described current rectifying and wave filtering circuit comprises: resistance R1 ~ R6, diode D1 ~ D8, voltage stabilizing didoe D9, metal-oxide-semiconductor Q1 and electric capacity C1;
Described external power input A, external power input B are connected full-wave rectifying circuit with external power input C: described resistance R2 one end connects described external power input A, and the other end connects the positive pole of described diode D1 and the negative pole of described diode D2; Described resistance R3 one end connects described external power input B, and the other end connects the positive pole of described diode D3 and the negative pole of described diode D4; Described resistance R4 one end connects described external power input C, and the other end connects the positive pole of described diode D5 and the negative pole of described diode D6; Described diode D1, diode D3 are connected with the negative pole of diode D5, and described diode D2, diode D4 are connected with the positive pole of diode D6;
Described diode D1, diode D3 are connected with the negative pole of diode D5 to be a little connected with the positive pole of diode D6 with described diode D2, diode D4 after described voltage stabilizing didoe D9 through described resistance R6 and are a little connected;
Described diode D1, diode D3 are connected with the negative pole of diode D5 and are a little also connected with the drain electrode of described metal-oxide-semiconductor Q1, the grid of described metal-oxide-semiconductor Q1 is connected with the tie point of described voltage-stabiliser tube D9 with described resistance R6, the source electrode of described metal-oxide-semiconductor Q1 connects the positive pole of described diode D8, the negative pole of described diode D8 is connected with described power output end OUT+, is also serially connected with described resistance R5 between the grid of described metal-oxide-semiconductor Q1 and source electrode;
Described external power input N is connected with the positive pole of described diode D7 after described resistance R1, and the negative pole of described diode D7 connects described power output end OUT+;
Described electric capacity C1 is serially connected with between described power output end OUT+ and power output end OUT-.
In first preferred embodiment of the current rectifying and wave filtering circuit of a kind of threephase switch power supply front end that the utility model provides: the positive pole of described voltage stabilizing didoe D9 connects described resistance R6, and negative pole connects described diode D2, diode D4 is connected a little with the positive pole of diode D6;
The voltage of voltage regulation of described voltage stabilizing didoe D9 is 260V.
The beneficial effect of the current rectifying and wave filtering circuit of a kind of threephase switch power supply front end that the utility model embodiment provides comprises: automatically can carry out halfwave rectifier or full-wave rectification according to the mode of connection of the power supply of access and electric pressure, thus reach the object of suitable direct voltage output.
Whole circuit structure is simple, can realize carrying out rectification to any two-phase or three-phase voltage, can ensure that the magnitude of voltage after rectification is lower simultaneously, conventional switching power supply development requires can be met, greatly reduce rear class Switching Power Supply design difficulty and cost, solve a bottleneck problem of Switching Power Supply design, be convenient to the exploitation of Switching Power Supply and applying of switch power technology.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of the current rectifying and wave filtering circuit of a kind of threephase switch power supply front end that the utility model embodiment provides;
Fig. 2 is the schematic diagram of the current rectifying and wave filtering circuit of a kind of threephase switch power supply front end that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In order to technical scheme described in the utility model is described, be described below by specific embodiment.
Be illustrated in figure 1 the circuit diagram of the current rectifying and wave filtering circuit of a kind of threephase switch power supply front end that the utility model provides, described current rectifying and wave filtering circuit comprises: resistance R1 ~ R6, diode D1 ~ D8, voltage stabilizing didoe D9, metal-oxide-semiconductor Q1 and electric capacity C1.
External power input A, external power input B are connected full-wave rectifying circuit with external power input C: resistance R2 one end connects external power input A, and the other end connects the positive pole of diode D1 and the negative pole of diode D2; Resistance R3 one end connects external power input B, and the other end connects the positive pole of diode D3 and the negative pole of diode D4; Resistance R4 one end connects external power input C, and the other end connects the positive pole of diode D5 and the negative pole of diode D6; Diode D1, diode D3 are connected with the negative pole of diode D5, and diode D2, diode D4 are connected with the positive pole of diode D6.
Diode D1, diode D3 are connected with the negative pole of diode D5 to be a little connected with the positive pole of diode D6 with diode D2, diode D4 after voltage stabilizing didoe D9 through resistance R6 and are a little connected.
Diode D1, diode D3 are connected with the negative pole of diode D5 and are a little also connected with the drain electrode of metal-oxide-semiconductor Q1, the grid of metal-oxide-semiconductor Q1 is connected with the tie point of voltage-stabiliser tube D9 with resistance R6, the source electrode of metal-oxide-semiconductor Q1 connects the positive pole of diode D8, the negative pole of diode D8 is connected with power output end OUT+, is also serially connected with resistance R5 between the grid of metal-oxide-semiconductor Q1 and source electrode.
External power input N is connected with the positive pole of diode D7 after resistance R1, and the negative pole of diode D7 connects power output end OUT+.
Electric capacity C1 is serially connected with between power output end OUT+ and power output end OUT-.
Further, the positive pole contact resistance R6 of voltage stabilizing didoe D9, negative pole connects diode D2, diode D4 is connected a little with the positive pole of diode D6, and the voltage of voltage regulation of voltage stabilizing didoe D9 is 260V.
What be illustrated in figure 2 the current rectifying and wave filtering circuit of a kind of threephase switch power supply front end that the utility model provides realizes schematic diagram, this current rectifying and wave filtering circuit can carry out halfwave rectifier or full-wave rectification automatically according to the mode of connection of the power supply of access and electric pressure, thus reach the object of suitable direct voltage output, concrete:
1, when external power input A, B, C, N access 3X220 (380) V three-phase and four-line electricity.
A, B, C is through R2 ~ R4, after D1 ~ D6 full-wave rectification, between the negative pole and D6 positive pole of diode D5, forming a direct voltage, (wherein R2 ~ R4 is current-limiting resistance, D1 ~ D6 is rectifier diode), direct voltage after this rectification is 380*1.414 ≈ 537V to the maximum, minimum voltage is 380*1.414*0.87 ≈ 467V, and the voltage of voltage regulation of voltage stabilizing didoe D9 is 260V, therefore the voltage between the negative pole of diode D5 and D6 positive pole is higher than the voltage of voltage-stabiliser tube voltage stabilizing D9, D9 conducting, then Q1 grid voltage is 260V, Q1 is in magnifying state, Q1 source voltage approximates 260V.
Crest voltage due to A and N, B and N, C and N phase voltage is 220*1.4144 ≈ 311V, in the time period reaching this peak value, electric capacity C1 is charged, the voltage that OUT+ is held is 311V, be greater than Q1 source voltage 260V, therefore D8 is in cut-off state always, finally, whole circuit by R1 ~ R4, D2, D4, D6 and D7 realize be halfwave rectifier, the voltage at OUT+ and OUT-two ends is approximately 310V.
2, when external power input A, B, C access 3X380V phase three-wire three electricity
Owing to not having N phase, so the input of D7 no-voltage, at this moment D8 conducting, A, B, C three-phase voltage carries out after full-wave rectification through R2 ~ R4 and D1 ~ D6, and the voltage at OUT+ and OUT-two ends is approximately 260V.
3, when external power input A and N or B and N or C and N powers on
Due to only have single-phase on have voltage, other two-phase inputs B and C, A and C, A and B all no-voltage input, at this moment whole circuit realiration is single phase half wave rectification, and the voltage at OUT+ and OUT-two ends is approximately 310V.
4, when external power input A and B or A and C or B and C powers on
Owing to not having N phase, so A and B or A and C or B and C is by after full-wave rectification, then through reduction voltage circuit, through D8 to output, at this moment the voltage at OUT+ and OUT-two ends is approximately 260V.
The utility model embodiment, automatically can carry out halfwave rectifier or full-wave rectification according to the mode of connection of the power supply of access and electric pressure, thus reach the object of suitable direct voltage output.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (2)
1. a current rectifying and wave filtering circuit for threephase switch power supply front end, is characterized in that, described current rectifying and wave filtering circuit comprises: resistance R1 ~ R6, diode D1 ~ D8, voltage stabilizing didoe D9, metal-oxide-semiconductor Q1 and electric capacity C1;
Described external power input A, external power input B are connected full-wave rectifying circuit with external power input C: described resistance R2 one end connects described external power input A, and the other end connects the positive pole of described diode D1 and the negative pole of described diode D2; Described resistance R3 one end connects described external power input B, and the other end connects the positive pole of described diode D3 and the negative pole of described diode D4; Described resistance R4 one end connects described external power input C, and the other end connects the positive pole of described diode D5 and the negative pole of described diode D6; Described diode D1, diode D3 are connected with the negative pole of diode D5, and described diode D2, diode D4 are connected with the positive pole of diode D6;
Described diode D1, diode D3 are connected with the negative pole of diode D5 to be a little connected with the positive pole of diode D6 with described diode D2, diode D4 after described voltage stabilizing didoe D9 through described resistance R6 and are a little connected;
Described diode D1, diode D3 are connected with the negative pole of diode D5 and are a little also connected with the drain electrode of described metal-oxide-semiconductor Q1, the grid of described metal-oxide-semiconductor Q1 is connected with the tie point of described voltage-stabiliser tube D9 with described resistance R6, the source electrode of described metal-oxide-semiconductor Q1 connects the positive pole of described diode D8, the negative pole of described diode D8 is connected with described power output end OUT+, is also serially connected with described resistance R5 between the grid of described metal-oxide-semiconductor Q1 and source electrode;
Described external power input N is connected with the positive pole of described diode D7 after described resistance R1, and the negative pole of described diode D7 connects described power output end OUT+;
Described electric capacity C1 is serially connected with between described power output end OUT+ and power output end OUT-.
2. circuit as claimed in claim 1, it is characterized in that, the positive pole of described voltage stabilizing didoe D9 connects described resistance R6, and negative pole connects described diode D2, diode D4 is connected a little with the positive pole of diode D6;
The voltage of voltage regulation of described voltage stabilizing didoe D9 is 260V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821594.8U CN204481704U (en) | 2014-12-22 | 2014-12-22 | A kind of current rectifying and wave filtering circuit of threephase switch power supply front end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821594.8U CN204481704U (en) | 2014-12-22 | 2014-12-22 | A kind of current rectifying and wave filtering circuit of threephase switch power supply front end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204481704U true CN204481704U (en) | 2015-07-15 |
Family
ID=53637476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821594.8U Active CN204481704U (en) | 2014-12-22 | 2014-12-22 | A kind of current rectifying and wave filtering circuit of threephase switch power supply front end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204481704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936191A (en) * | 2017-04-19 | 2017-07-07 | 深圳市菊水皇家科技有限公司 | A kind of charging pile power module controls circuit |
| CN107026578A (en) * | 2016-02-01 | 2017-08-08 | 余姚市新竹智控技术有限公司 | A kind of utility unit for being used to widen small-power switching power-supply input voltage range |
-
2014
- 2014-12-22 CN CN201420821594.8U patent/CN204481704U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026578A (en) * | 2016-02-01 | 2017-08-08 | 余姚市新竹智控技术有限公司 | A kind of utility unit for being used to widen small-power switching power-supply input voltage range |
| CN106936191A (en) * | 2017-04-19 | 2017-07-07 | 深圳市菊水皇家科技有限公司 | A kind of charging pile power module controls circuit |
| CN106936191B (en) * | 2017-04-19 | 2021-11-12 | 深圳华源技术实业有限公司 | Fill electric pile power module control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202888900U (en) | Storage battery charging and boosting circuit for online UPS (Uninterrupted Power Supply) | |
| CN103178582B (en) | A kind of power frequency on-Line UPS with power factor emendation function | |
| CN103066865B (en) | Three-phase Bridgeless power factor correction A.C.-D.C. converter | |
| CN104253549A (en) | LCL filtering-based circuit topology structure of high-power PWM (pulse-width modulation) rectifier | |
| CN103312211A (en) | Control method of single phase grid-connected inverter | |
| CN204481704U (en) | A kind of current rectifying and wave filtering circuit of threephase switch power supply front end | |
| CN102255356B (en) | Efficient uninterruptible power supply | |
| CN103546026B (en) | A kind of single-phase high-gain no-bridge power factor correction converter | |
| CN203135507U (en) | Power frequency on-line-type uninterrupted power supply having power factor correction function | |
| CN203301393U (en) | Non transformer single-phase grid connected inverter | |
| CN204481703U (en) | A kind of AC-DC change-over circuit | |
| CN204538715U (en) | The grid-connected main circuit of effective suppression leakage current | |
| CN203896209U (en) | Low-voltage three-phase input voltage boosting and reducing DC power supply device | |
| CN203911750U (en) | Active unidirectional conduction apparatus | |
| CN103595249B (en) | Based on the inverse DC voltage booster circuit leading switch | |
| CN202617030U (en) | Multi-level photovoltaic grid connected inverter with isolation transformer | |
| CN204290703U (en) | With the booster circuit of power factor correction | |
| CN204205707U (en) | Low-pressure high-power digitlization power frequency on-Line UPS | |
| CN205212701U (en) | Two boost of Z type do not have bridge PFC converter | |
| CN212367071U (en) | Single-phase AC push rod | |
| CN205961052U (en) | Photovoltaic power supply system | |
| CN204615642U (en) | The inverter that reactive power is adjustable | |
| CN205160396U (en) | Two boost of high efficiency do not have bridge PFC converter | |
| CN203233305U (en) | Power factor correcting circuit of single-phase arc welding inverter | |
| CN204633606U (en) | Based on the high power switching power supply of DSP |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |