CN218071316U - Single-ended double-tube forward type conversion circuit - Google Patents
Single-ended double-tube forward type conversion circuit Download PDFInfo
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- CN218071316U CN218071316U CN202221562246.4U CN202221562246U CN218071316U CN 218071316 U CN218071316 U CN 218071316U CN 202221562246 U CN202221562246 U CN 202221562246U CN 218071316 U CN218071316 U CN 218071316U
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- 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 double-barrelled normal shock formula converting circuit of single-ended relates to the voltage supply field, and this double-barrelled normal shock formula converting circuit of single-ended includes: the power supply module is used for supplying direct current and outputting the direct current to the voltage regulating module; the voltage regulating module is used for regulating the voltage output to the switching tube working module; the switching tube working module is used for generating alternating current through the on-off of the switching tube and outputting the alternating current to the voltage transformation module; the switching tube control module is used for controlling the conduction frequency of the switching tube and changing the frequency of the generated alternating current; the voltage transformation module is used for transforming the alternating current and outputting the alternating current to the rectification filtering module; the rectifying and filtering module is used for generating direct current to supply power to a load; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a voltage regulation module changes the voltage size that generates the alternating current, supplies with suitable voltage for the load through vary voltage module, rectification filter module, and circuit structure is simple, effectively saves the cost.
Description
Technical Field
The utility model relates to a voltage supply field specifically is a double-barrelled normal shock formula converting circuit of single-ended.
Background
The biggest difference between forward and flyback operations is that when the switching tube is turned off, the forward output is mainly maintained by the energy storage inductor and the freewheeling diode, and the flyback output is mainly maintained by the energy released by the secondary of the transformer.
The existing forward conversion circuit has a complex structure and high cost, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double-barrelled normal shock formula converting circuit of single-ended to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a single-ended dual-transistor forward conversion circuit, comprising:
the power supply module is used for supplying direct current and outputting the direct current to the voltage regulating module;
the voltage regulating module is used for regulating the voltage output to the switching tube working module;
the switching tube working module is used for generating alternating current through the on-off of the switching tube and outputting the alternating current to the voltage transformation module;
the switching tube control module is used for controlling the conduction frequency of the switching tube and changing the frequency of the generated alternating current;
the voltage transformation module is used for transforming the alternating current and outputting the alternating current to the rectification filtering module;
the rectifying and filtering module is used for generating direct current to supply power to a load;
the power supply module is connected with the voltage regulating module, the voltage regulating module is connected with the switch tube working module, the switch tube control module is connected with the switch tube working module, the switch tube working module is connected with the voltage transformation module, and the voltage transformation module is connected with the rectification filtering module.
As a further aspect of the present invention: the voltage regulating module comprises a voltage stabilizer U1, a resistor R1, a potentiometer RP1 and a capacitor C1, the input end of the voltage stabilizer U1 is connected with the power supply module, one end of the connecting circuit negative end of the voltage stabilizer U1 is connected with one end of the resistor R1, one end of the potentiometer RP1, the other end of the potentiometer RP1 is connected with the circuit negative electrode, the other end of the output end of the voltage stabilizer U1 is connected with the resistor R1, the capacitor C1, a switch tube working module and the other end of the capacitor C1 is connected with the circuit negative electrode.
As a further aspect of the present invention: switch tube work module includes MOS pipe V1, diode D1, MOS pipe V2, diode D1 ' S negative pole is connected to MOS pipe V1 ' S D utmost point, transformer W ' S first end, diode D1 ' S positive pole is connected to MOS pipe V1 ' S the S utmost point, MOS pipe V2 ' S the S utmost point, diode D2 ' S positive pole, the circuit negative pole, diode D2 ' S negative pole is connected to MOS pipe V2 ' S D utmost point, transformer W ' S third end, transformer W ' S second end is connected the pressure regulating module, MOS pipe V1 ' S the G utmost point junction switch tube control module, MOS pipe V2 ' S the G utmost point junction switch tube control module.
As a further aspect of the present invention: switch tube control module includes phase inverter U2, phase inverter U3, phase inverter U4, resistance R3, potentiometre RP2, electric capacity C4, potentiometre RP 2's one end is connected to phase inverter U2's input, electric capacity C4's one end, potentiometre RP 2's other end connecting resistance R3's one end, phase inverter U2's output is connected to resistance R3's the other end, phase inverter U3's input, electric capacity C4's the other end is connected to phase inverter U3's output, MOS pipe V1's the G utmost point, phase inverter U4's input, MOS pipe V2's the G utmost point is connected to phase inverter U4's output.
As a further aspect of the present invention: the rectifying and filtering module comprises a diode D3, a diode D4, a capacitor C2, an inductor L1, a capacitor C3, a resistor R2, the positive electrode of the diode D3 is connected with the fourth end of the transformer W, the positive electrode of the diode D4 is connected with the sixth end of the transformer W, the negative electrode of the diode D4 is connected with the negative electrode of the diode D3, one end of the inductor L1, one end of the capacitor C2, one end of the capacitor C3 is connected with the other end of the inductor L1, one end of the resistor R2, the other end of the capacitor C3 is connected with the other end of the resistor R2, the other end of the capacitor C2 and the fifth end of the transformer W.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a voltage regulation module changes the voltage size that generates the alternating current, supplies with suitable voltage for the load through vary voltage module, rectification filter module, and circuit structure is simple, effectively saves the cost.
Drawings
Fig. 1 is a schematic diagram of a single-ended double-tube forward conversion circuit.
Fig. 2 is a circuit diagram of a single-ended double-transistor forward converter.
Fig. 3 is a circuit diagram of the voltage regulating module.
Fig. 4 is a circuit diagram of the switching tube control module.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, a single-ended double-transistor forward conversion circuit includes:
the power supply module is used for supplying direct current and outputting the direct current to the voltage regulating module;
the voltage regulating module is used for regulating the voltage output to the switching tube working module;
the switching tube working module is used for generating alternating current through the on-off of the switching tube and outputting the alternating current to the voltage transformation module;
the switching tube control module is used for controlling the conduction frequency of the switching tube and changing the frequency of the generated alternating current;
the voltage transformation module is used for transforming the alternating current and outputting the transformed alternating current to the rectification filtering module;
the rectifying and filtering module is used for generating direct current to supply power to a load;
the power supply module is connected with the voltage regulating module, the voltage regulating module is connected with the switching tube working module, the switching tube control module is connected with the switching tube working module, the switching tube working module is connected with the voltage transformation module, and the voltage transformation module is connected with the rectification filtering module.
In a specific embodiment: the supply voltage of the power supply module is supplied by a battery, and the output direct current is supplied to the voltage regulating module.
In this embodiment: referring to fig. 2, the voltage regulation module includes a voltage regulator U1, a resistor R1, a potentiometer RP1, and a capacitor C1, the input terminal of the voltage regulator U1 is connected to the power supply module, the negative terminal of the connection circuit of the voltage regulator U1 is connected to one terminal of the resistor R1 and one terminal of the potentiometer RP1, the other terminal of the potentiometer RP1 is connected to the negative terminal of the circuit, the output terminal of the voltage regulator U1 is connected to the other terminal of the resistor R1, the capacitor C1, the switching tube operating module, and the other terminal of the capacitor C1 is connected to the negative terminal of the circuit.
The voltage between the output end of the voltage stabilizer U1 and the negative end of the connecting circuit is constant, so that the output voltage VCC2 is changed by adjusting the resistance value of the potentiometer RP 1.
In this embodiment: referring to fig. 3, the switching tube operating module includes a MOS tube V1, a diode D1, a MOS tube V2, and a diode D2, a D pole of the MOS tube V1 is connected to a negative pole of the diode D1, a first end of the transformer W, an S pole of the MOS tube V1 is connected to a positive pole of the diode D1, an S pole of the MOS tube V2, a positive pole of the diode D2, and a negative pole of the circuit, a D pole of the MOS tube V2 is connected to a negative pole of the diode D2 and a third end of the transformer W, a second end of the transformer W is connected to the voltage regulating module, a G pole of the MOS tube V1 is connected to the switching tube control module, and a G pole of the MOS tube V2 is connected to the switching tube control module.
When the MOS tube V1 is switched on and the MOS tube V2 is switched off, the voltage VCC2 is from the second end of the transformer W, the first end of the transformer W, the MOS tube V1 and the circuit cathode, and the current direction on the transformer W is from bottom to top; when the MOS tube V2 is switched on and the MOS tube V1 is switched off, the voltage VCC2 is from the second end of the transformer W, the third end of the transformer W, the MOS tube V2 and the circuit cathode, and the current direction on the transformer W is from top to bottom; by rapidly turning on and off the MOS tubes V1 and V2 in a short time, alternating current is formed on the transformer W.
In this embodiment: referring to fig. 4, the switching tube control module includes a phase inverter U2, a phase inverter U3, a phase inverter U4, a resistor R3, a potentiometer RP2, and a capacitor C4, wherein an input end of the phase inverter U2 is connected to one end of the potentiometer RP2 and one end of the capacitor C4, the other end of the potentiometer RP2 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to an output end of the phase inverter U2 and an input end of the phase inverter U3, an output end of the phase inverter U3 is connected to the other end of the capacitor C4, a G pole of the MOS transistor V1 and an input end of the phase inverter U4, and an output end of the phase inverter U4 is connected to the G pole of the MOS transistor V2.
When the input end of the phase inverter U2 is at a low level, the output end of the phase inverter U2 is at a high level, further, the current charges the capacitor C4 through the resistor R3 and the potentiometer RP2, when the capacitor C4 is changed into the high level, namely, the input end of the phase inverter U2 is at the high level, at the moment, the output end of the amplifier U2 is at the low level, the capacitor C4 is amplified through the potentiometer RP2 and the resistor R3 and then is changed back to the low level again, in a reciprocating manner, the output end of the phase inverter U2 is a PWM signal, the phase inverters U3 and U4 also output the PWM signal, and the PWM signals output by the phase inverter U3 and the phase inverter U4 are complementary, so that when the MOS tube V1 is switched on, the MOS tube V2 must be switched off; when the MOS transistor V1 is cut off, the MOS transistor V2 is conducted.
In this embodiment: referring to fig. 2, the rectifying and filtering module includes a diode D3, a diode D4, a capacitor C2, an inductor L1, a capacitor C3, and a resistor R2, wherein a positive electrode of the diode D3 is connected to the fourth end of the transformer W, a positive electrode of the diode D4 is connected to the sixth end of the transformer W, a negative electrode of the diode D3 is connected to a negative electrode of the diode D4, one end of the inductor L1, and one end of the capacitor C2, another end of the inductor L1 is connected to one end of the capacitor C3 and one end of the resistor R2, and another end of the resistor R2 is connected to another end of the capacitor C3, another end of the capacitor C2, and the fifth end of the transformer W.
Alternating current on the input side of the transformer W is transformed by the transformer W and then forms alternating current on the output side of the transformer W, the alternating current is rectified into direct current by the diodes D3 and D4, and the direct current is filtered by the capacitor C2, the inductor L1 and the capacitor C3 and then is stable, so that power is supplied to a load.
The utility model discloses a theory of operation is: the power supply module supplies direct current to output to the voltage regulating module, the voltage regulating module regulates the voltage output to the switching tube working module, the switching tube working module generates alternating current through the on-off of the switching tube and outputs the alternating current to the voltage transformation module, the switching tube control module controls the on-off frequency of the switching tube to change the frequency of the generated alternating current, the voltage transformation module transforms the alternating current and outputs the alternating current to the rectification filtering module, and the rectification filtering module generates direct current to supply power to a load.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A single-ended double-tube forward conversion circuit is characterized in that:
the single-ended double-tube forward conversion circuit comprises:
the power supply module is used for supplying direct current and outputting the direct current to the voltage regulating module;
the voltage regulating module is used for regulating the voltage output to the switching tube working module;
the switching tube working module is used for generating alternating current through the on-off of the switching tube and outputting the alternating current to the voltage transformation module;
the switching tube control module is used for controlling the conduction frequency of the switching tube and changing the frequency of the generated alternating current;
the voltage transformation module is used for transforming the alternating current and outputting the transformed alternating current to the rectification filtering module;
the rectifying and filtering module is used for generating direct current to supply power to a load;
the power supply module is connected with the voltage regulating module, the voltage regulating module is connected with the switch tube working module, the switch tube control module is connected with the switch tube working module, the switch tube working module is connected with the voltage transformation module, and the voltage transformation module is connected with the rectification filtering module.
2. The single-ended double-tube forward converter circuit according to claim 1, wherein the voltage regulation module comprises a voltage regulator U1, a resistor R1, a potentiometer RP1 and a capacitor C1, an input end of the voltage regulator U1 is connected with the power supply module, a negative end of a connection circuit of the voltage regulator U1 is connected with one end of the resistor R1 and one end of the potentiometer RP1, the other end of the potentiometer RP1 is connected with a negative electrode of the circuit, an output end of the voltage regulator U1 is connected with the other end of the resistor R1, the capacitor C1 and the switching tube operating module, and the other end of the capacitor C1 is connected with the negative electrode of the circuit.
3. The single-ended double-tube forward converter circuit according to claim 1, wherein the switching tube operating module comprises a MOS tube V1, a diode D1, a MOS tube V2, and a diode D2, the D pole of the MOS tube V1 is connected to the negative pole of the diode D1 and the first end of the transformer W, the S pole of the MOS tube V1 is connected to the positive pole of the diode D1, the S pole of the MOS tube V2, the positive pole of the diode D2, and the circuit negative pole, the D pole of the MOS tube V2 is connected to the negative pole of the diode D2 and the third end of the transformer W, the second end of the transformer W is connected to the voltage regulating module, the G pole of the MOS tube V1 is connected to the switching tube control module, and the G pole of the MOS tube V2 is connected to the switching tube control module.
4. The single-ended double-tube forward conversion circuit according to claim 3, wherein the switching tube control module comprises an inverter U2, an inverter U3, an inverter U4, a resistor R3, a potentiometer RP2 and a capacitor C4, an input end of the inverter U2 is connected with one end of the potentiometer RP2 and one end of the capacitor C4, the other end of the potentiometer RP2 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with an output end of the inverter U2 and an input end of the inverter U3, an output end of the inverter U3 is connected with the other end of the capacitor C4, a G pole of the MOS tube V1 and an input end of the inverter U4, and an output end of the inverter U4 is connected with a G pole of the MOS tube V2.
5. The single-ended double-tube forward converter circuit according to claim 1, wherein the rectifying and filtering module comprises a diode D3, a diode D4, a capacitor C2, an inductor L1, a capacitor C3 and a resistor R2, wherein the anode of the diode D3 is connected to the fourth end of the transformer W, the anode of the diode D4 is connected to the sixth end of the transformer W, the cathode of the diode D3 is connected to the cathode of the diode D4, one end of the inductor L1 and one end of the capacitor C2, the other end of the inductor L1 is connected to one end of the capacitor C3 and one end of the resistor R2, and the other end of the resistor R2 is connected to the other end of the capacitor C3, the other end of the capacitor C2 and the fifth end of the transformer W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221562246.4U CN218071316U (en) | 2022-06-22 | 2022-06-22 | Single-ended double-tube forward type conversion circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221562246.4U CN218071316U (en) | 2022-06-22 | 2022-06-22 | Single-ended double-tube forward type conversion circuit |
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| CN218071316U true CN218071316U (en) | 2022-12-16 |
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| CN202221562246.4U Active CN218071316U (en) | 2022-06-22 | 2022-06-22 | Single-ended double-tube forward type conversion circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116418249A (en) * | 2023-06-08 | 2023-07-11 | 深圳市斯康达电子有限公司 | AC/DC bidirectional conversion circuit |
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2022
- 2022-06-22 CN CN202221562246.4U patent/CN218071316U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116418249A (en) * | 2023-06-08 | 2023-07-11 | 深圳市斯康达电子有限公司 | AC/DC bidirectional conversion circuit |
| CN116418249B (en) * | 2023-06-08 | 2023-10-10 | 深圳市斯康达电子有限公司 | AC/DC bidirectional conversion circuit |
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