CN219268737U - Rectifying circuit for power supply - Google Patents
Rectifying circuit for power supply Download PDFInfo
- Publication number
- CN219268737U CN219268737U CN202223079561.4U CN202223079561U CN219268737U CN 219268737 U CN219268737 U CN 219268737U CN 202223079561 U CN202223079561 U CN 202223079561U CN 219268737 U CN219268737 U CN 219268737U
- Authority
- CN
- China
- Prior art keywords
- resistor
- power supply
- voltage
- diode
- circuit
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The utility model discloses a rectifying circuit for a power supply, which is characterized in that a switching power supply outputs direct-current voltage on a conventional high-voltage transformer through the work of a power supply control circuit, a high-frequency transformer T1 performs transformation treatment on the accessed direct-current voltage to generate alternating-current voltage, and then outputs one path of alternating-current voltage to a first voltage regulating circuit and a second voltage regulating circuit respectively, so that the alternating-current voltage received by the first voltage regulating circuit and the second voltage regulating circuit is rectified and then is output to an inductor L1, and the rectified voltage of the inductor L1 is stored.
Description
Technical Field
The present disclosure relates to electronic circuits, and particularly to a rectifier circuit for a power supply.
Background
In the related art, the switching power supply is generally used as a power supply of the electric equipment, so that the switching power supply needs to provide various different power supply voltages for each functional module in the electric equipment, but with the development of the related art, the high-frequency switching power supply applied to the electric equipment has poor heat dissipation performance, so that the problem of overhigh failure rate is easily caused.
Disclosure of Invention
The utility model aims to solve one of the problems existing in the related art to at least a certain extent, and therefore, the utility model provides a rectifying circuit for a power supply, which has a simple structure and can effectively improve the heat dissipation performance of the power supply, thereby being beneficial to improving the stability of electric equipment.
The above object is achieved by the following technical scheme:
the utility model provides a rectifier circuit for power, includes switching power supply, power supply control circuit, high-frequency transformer, first voltage regulation circuit, second voltage regulation circuit and inductance, wherein switching power supply's output with power supply control circuit's input is connected in order to input direct current voltage, power supply control circuit's output with high-frequency transformer's former limit coil is connected, its secondary coil is connected with first voltage regulation circuit's input, second voltage regulation circuit's input respectively, the inductance is connected with first voltage regulation circuit's output, second voltage regulation circuit's output respectively, through power supply control circuit's action is in order to carry direct current voltage to high-frequency transformer, high-frequency transformer carries out the transformation to the voltage that inserts in order to produce alternating current voltage, then exports one way alternating current voltage to first voltage regulation circuit, second voltage regulation circuit respectively to carry out the rectification processing with the alternating current voltage that receives again on the inductance.
In some embodiments, the power supply control circuit includes a first MOS transistor and a second MOS transistor, where a drain electrode of the first MOS transistor is connected to an output end of the switching power supply, one end of a first capacitor, and a first diode, a source electrode of the first MOS transistor is connected to one end of a primary winding of the high-frequency transformer, one end of a second diode, and another end of the first capacitor is grounded;
the drain electrode of the second MOS tube is respectively connected with the other end of the primary coil of the high-frequency transformer and the other end of the first diode, and the source electrode of the second MOS tube is connected with the other end of the second diode and grounded.
In some embodiments, the first voltage regulating circuit includes a third MOS transistor and a third diode, where a drain electrode of the third MOS transistor is connected to one end of the secondary winding of the high-frequency transformer, a source electrode of the third MOS transistor is connected to one end of the third diode, one end of the second voltage regulating circuit and one end of the second capacitor respectively, and is grounded, a gate electrode of the third MOS transistor is connected to the other end of the third diode and one end of the first resistor respectively, and the other end of the second capacitor is connected to one end of the inductor.
In some embodiments, the first voltage regulating circuit further includes a second resistor, a fourth diode, a third resistor, and a fifth diode, wherein the other end of the first resistor is connected to one end of the second resistor and one end of the fourth diode, respectively, the other end of the fourth diode is connected to the other end of the second resistor and one end of the fifth diode, respectively, through the third resistor, and the other end of the fifth diode is connected to the other end of the secondary winding of the high-frequency transformer.
In some embodiments, the second voltage regulating circuit includes a fourth MOS transistor, a source of which is connected to the first voltage regulating circuit, and a drain of which is connected to the other end of the inductor;
and the input end of the driving chip is connected with the other end of the secondary coil of the high-frequency transformer, and the output end of the driving chip is connected with the inductor.
In some embodiments, the second voltage adjusting circuit further includes a fourth resistor, a fifth resistor, a third capacitor, a sixth resistor, and a seventh resistor, where the first pin and the second pin of the driving chip are respectively connected to one end of the fourth resistor and grounded, the other end of the fourth resistor is connected to the other end of the secondary winding of the high-frequency transformer through the fifth resistor, the fourth pin of the driving chip is connected to one end of the third capacitor and grounded, the other end of the third capacitor is connected to the inductor, the fifth pin of the driving chip is respectively connected to one end of the inductor and one end of the sixth resistor, the other end of the sixth resistor is respectively connected to one end of the seventh resistor and one end of the fourth resistor and grounded, the sixth pin of the driving chip is grounded, and the eighth pin of the driving chip is connected to a middle position between the fourth resistor and the fifth resistor.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
1. the rectifying circuit for the power supply has a simple structure, and can effectively improve the heat dissipation performance of the power supply, thereby being beneficial to improving the stability of electric equipment.
Drawings
Fig. 1 is a schematic circuit diagram of a rectifying circuit according to an embodiment of the present utility model.
Detailed Description
The following examples illustrate the utility model, but the utility model is not limited to these examples. Modifications and equivalents of some of the technical features of the specific embodiments of the present utility model may be made without departing from the spirit of the present utility model, and they are all included in the scope of the claimed utility model.
Examples:
as shown in fig. 1, the present embodiment provides a rectifying circuit for a power supply, including a switching power supply, a power supply control circuit, a high-frequency transformer T1, a first voltage adjusting circuit, a second voltage adjusting circuit, and an inductor L1, where an output end of the switching power supply is connected to an input end of the power supply control circuit to input a dc voltage, an output end of the power supply control circuit is connected to a primary coil of the high-frequency transformer T1, a secondary coil of the power supply control circuit is connected to an input end of the first voltage adjusting circuit and an input end of the second voltage adjusting circuit, the inductor L1 is connected to an output end of the first voltage adjusting circuit and an output end of the second voltage adjusting circuit, the dc voltage is delivered to the high-frequency transformer T1 by an operation of the power supply control circuit, and the high-frequency transformer T1 performs a transformation treatment on the connected voltage to generate an ac voltage, and then outputs a path of the ac voltage to the first voltage adjusting circuit and the second voltage adjusting circuit, thereby rectifying the received ac voltage and outputting the ac voltage to the inductor L1.
In this embodiment, the switching power supply outputs a dc voltage on the previous high-voltage transformer through the operation of the power control circuit, the high-frequency transformer T1 performs a transformation process on the connected dc voltage to generate an ac voltage, and then outputs an ac voltage to the first voltage adjusting circuit and the second voltage adjusting circuit, so that the first voltage adjusting circuit and the second voltage adjusting circuit rectify the received ac voltage and then output the rectified ac voltage to the inductor L1, so that the inductor L1 stores the rectified voltage.
Further, the power supply control circuit comprises a first MOS tube Q1 and a second MOS tube Q2, wherein the drain electrode of the first MOS tube Q1 is respectively connected with the output end of the switching power supply, one end of a first capacitor E1 and a first diode D6, the source electrode of the first MOS tube Q1 is respectively connected with one end of a primary coil of the high-frequency transformer T1 and one end of a second diode D5, and the other end of the first capacitor E1 is grounded;
preferably, the drain electrode of the second MOS transistor Q2 is connected to the other end of the primary winding of the high-frequency transformer T1 and the other end of the first diode D6, and the source electrode thereof is connected to the other end of the second diode D5 and grounded.
Specifically, the first voltage adjusting circuit includes a third MOS transistor D7 and a third diode ZD01, where a drain electrode of the third MOS transistor D7 is connected to one end of a secondary winding of the high-frequency transformer T1, a source electrode of the third MOS transistor D7 is connected to one end of the third diode ZD01, one end of the second voltage adjusting circuit and one end of the second capacitor E3 respectively, and is grounded, a gate electrode of the second voltage adjusting circuit is connected to the other end of the third diode ZD01 and one end of the first resistor R42 respectively, and the other end of the second capacitor E3 is connected to one end of the inductor L1.
More preferably, the first voltage adjusting circuit further includes a second resistor R44, a fourth diode D11, a third resistor R44A, and a fifth diode ZD1, wherein the other end of the first resistor R42 is connected to one end of the second resistor R44 and one end of the fourth diode D11, respectively, the other end of the fourth diode D11 is connected to the other end of the second resistor R44 and one end of the fifth diode ZD1 through the third resistor R44A, respectively, and the other end of the fifth diode ZD1 is connected to the other end of the secondary winding of the high-frequency transformer T1.
Further, the second voltage regulating circuit comprises a fourth MOS tube D9, the source electrode of the fourth MOS tube D9 is connected with the first voltage regulating circuit, and the drain electrode of the fourth MOS tube D9 is connected with the other end of the inductor L1;
and the input end of the driving chip U2 is connected with the other end of the secondary coil of the high-frequency transformer T1, and the output end of the driving chip U2 is connected with the inductor L1.
Specifically, the second voltage adjusting circuit further includes a fourth resistor R39, a fifth resistor R38, a third capacitor C11, a sixth resistor R36, and a seventh resistor R37, where the first pin and the second pin of the driving chip U2 are respectively connected to one end of the fourth resistor R39 and grounded, the other end of the fourth resistor R39 is connected to the other end of the secondary winding of the high-frequency transformer T1 through the fifth resistor R38, the fourth pin of the driving chip U2 is connected to one end of the third capacitor C11 and grounded, the other end of the third capacitor C11 is connected to the inductor L1, the fifth pin of the driving chip U2 is respectively connected to one end of the inductor L1 and one end of the sixth resistor R36, the other end of the sixth resistor R36 is respectively connected to one end of the seventh pin and one end of the seventh resistor R37 of the driving chip U2, the other end of the seventh resistor R37 is connected to one end of the fourth resistor R39 and grounded, the sixth pin of the driving chip U2 is grounded, and the eighth pin of the driving chip U2 is connected to an intermediate position between the fourth resistor R39 and the fifth resistor R38.
In this embodiment, the switching power supply outputs a dc voltage to the conventional high-voltage transformer through the operation of the power control circuit, that is, when the first MOS transistor Q1 is switched to the on state and the second MOS transistor Q2 is controlled to be switched to the off state, the high-frequency transformer T1 stores the dc voltage input by the switching power supply, and then switches the first MOS transistor Q1 to the off state and controls the second MOS transistor Q2 to be switched to the on state, so that the high-frequency transformer T1 performs a transformation treatment on the stored dc voltage to generate an ac voltage, so that the first MOS transistor Q1 and the second MOS transistor Q2 cooperate to control the transmission of the dc voltage, and then outputs a path of ac voltage to the first voltage regulating circuit and the second voltage regulating circuit through the high-frequency transformer T1, so that the ac voltage received by the first voltage regulating circuit and the second voltage regulating circuit is rectified and then output to the inductor L1, and further the inductor L1 stores the rectified voltage, thereby effectively improving the heat dissipation performance of the power supply and further improving the heat dissipation stability of the consumer.
What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (6)
1. The rectification circuit for the power supply is characterized by comprising a switching power supply, a power supply control circuit, a high-frequency transformer, a first voltage regulating circuit, a second voltage regulating circuit and an inductor, wherein the output end of the switching power supply is connected with the input end of the power supply control circuit to input direct-current voltage, the output end of the power supply control circuit is connected with a primary coil of the high-frequency transformer, a secondary coil of the power supply control circuit is respectively connected with the input end of the first voltage regulating circuit and the input end of the second voltage regulating circuit, the inductor is respectively connected with the output end of the first voltage regulating circuit and the output end of the second voltage regulating circuit, direct-current voltage is transmitted to the high-frequency transformer through the action of the power supply control circuit, the high-frequency transformer carries out transformation processing on the connected voltage to generate alternating-current voltage, and then outputs one path of alternating-current voltage to the first voltage regulating circuit and the second voltage regulating circuit respectively, so that the received alternating-current voltage is rectified and then is output to the inductor.
2. The rectifying circuit for a power supply according to claim 1, wherein the power supply control circuit comprises a first MOS transistor and a second MOS transistor, wherein a drain electrode of the first MOS transistor is connected to an output terminal of the switching power supply, one end of a first capacitor, and a first diode, a source electrode thereof is connected to one end of a primary winding of the high-frequency transformer, one end of a second diode, and the other end of the first capacitor is grounded;
the drain electrode of the second MOS tube is respectively connected with the other end of the primary coil of the high-frequency transformer and the other end of the first diode, and the source electrode of the second MOS tube is connected with the other end of the second diode and grounded.
3. The rectifier circuit for a power supply according to claim 1, wherein the first voltage regulating circuit comprises a third MOS transistor and a third diode, wherein a drain electrode of the third MOS transistor is connected to one end of the secondary winding of the high-frequency transformer, a source electrode thereof is connected to one end of the third diode, one end of the second voltage regulating circuit and one end of the second capacitor respectively, and is grounded, a gate electrode thereof is connected to the other end of the third diode and one end of the first resistor respectively, and the other end of the second capacitor is connected to one end of the inductor.
4. A rectifying circuit for a power supply according to claim 3, characterized in that said first voltage regulating circuit further comprises a second resistor, a fourth diode, a third resistor, a fifth diode, wherein the other end of said first resistor is connected to one end of said second resistor, one end of said fourth diode, respectively, the other end of said fourth diode is connected to the other end of said second resistor, one end of said fifth diode, respectively, through said third resistor, and the other end of said fifth diode is connected to the other end of said secondary winding of said high frequency transformer.
5. The rectifying circuit for a power supply according to claim 1, wherein the second voltage regulating circuit comprises a fourth MOS transistor, a source of the fourth MOS transistor is connected to the first voltage regulating circuit, and a drain thereof is connected to the other end of the inductor;
and the input end of the driving chip is connected with the other end of the secondary coil of the high-frequency transformer, and the output end of the driving chip is connected with the inductor.
6. The rectifier circuit for a power supply according to claim 5, wherein the second voltage adjusting circuit further comprises a fourth resistor, a fifth resistor, a third capacitor, a sixth resistor and a seventh resistor, wherein the first pin and the second pin of the driving chip are respectively connected with one end of the fourth resistor and grounded, the other end of the fourth resistor is connected with the other end of the secondary winding of the high-frequency transformer through the fifth resistor, the fourth pin of the driving chip is connected with one end of the third capacitor and grounded, the other end of the third capacitor is connected with the inductor, the fifth pin of the driving chip is respectively connected with one end of the inductor and one end of the sixth resistor, the other end of the sixth resistor is respectively connected with one end of the seventh pin and one end of the seventh resistor, the other end of the seventh resistor is connected with one end of the fourth resistor and grounded, the sixth pin of the driving chip is grounded, and the eighth pin of the driving chip is connected with the intermediate position between the fourth resistor and the fifth resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223079561.4U CN219268737U (en) | 2022-11-21 | 2022-11-21 | Rectifying circuit for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223079561.4U CN219268737U (en) | 2022-11-21 | 2022-11-21 | Rectifying circuit for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219268737U true CN219268737U (en) | 2023-06-27 |
Family
ID=86866859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223079561.4U Active CN219268737U (en) | 2022-11-21 | 2022-11-21 | Rectifying circuit for power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219268737U (en) |
-
2022
- 2022-11-21 CN CN202223079561.4U patent/CN219268737U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5233509A (en) | Switch-mode AC-to-DC converter | |
| US9331598B2 (en) | Power factor correction device, power supply, and motor driver | |
| US5650923A (en) | Single phase input-three phase full bridge rectifier circuit and single phase input-pseudo four phase full bridge rectifier circuit | |
| US11283288B2 (en) | Integrated DC to DC converter UPS topology | |
| CN113541331B (en) | Self-adaptive low-voltage starting circuit and method for low-inductance wireless charging system | |
| CN101662214B (en) | High voltage isolating switch power and a plurality of output isolated switch power systems | |
| RU2355531C2 (en) | Arc-welding generator with high power coefficient | |
| KR101388775B1 (en) | Power supply device | |
| CN219268737U (en) | Rectifying circuit for power supply | |
| JP2003079144A (en) | Electrical circuit device for generating low-power rectified low voltage from ac voltage | |
| US5828563A (en) | Single phase input hybrid rectification method employing auxiliary rectification | |
| WO2022127049A1 (en) | Resonant tank circuit, wide voltage input and output power source, and electronic device | |
| TW201931752A (en) | Inverter with AC forward bridge and improved DC/DC topology | |
| CA2779179C (en) | Linear transformer power supply | |
| CN214315059U (en) | High power density's charger with Type C interface | |
| EP4120534A1 (en) | Power supply conversion circuit and power supply conversion method | |
| CN115104253A (en) | Power supply circuit and power supply device | |
| CN111799999A (en) | Starting circuit and method of switching power supply, switching power supply and electric equipment | |
| CN215580899U (en) | High-voltage starting circuit | |
| CN220964655U (en) | Power supply control system and LED all-in-one machine | |
| CN212258777U (en) | Starting circuit of switching power supply, switching power supply and electric equipment | |
| CN219576879U (en) | Bridge rectifier with control function | |
| CN209526547U (en) | Power supply unit and charger | |
| CN216531103U (en) | Single-winding multi-output switching power supply | |
| EP3316464B1 (en) | A switched-mode power supply with power factor correction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |