CN216490206U - High-frequency transformer rectifier integrated AC-DC hybrid switching power supply - Google Patents
High-frequency transformer rectifier integrated AC-DC hybrid switching power supply Download PDFInfo
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- CN216490206U CN216490206U CN202123167342.7U CN202123167342U CN216490206U CN 216490206 U CN216490206 U CN 216490206U CN 202123167342 U CN202123167342 U CN 202123167342U CN 216490206 U CN216490206 U CN 216490206U
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Abstract
The utility model discloses an integrated alternating current-direct current hybrid switch power supply of high frequency transformer rectifier relates to the switching power supply field, and this integrated alternating current-direct current hybrid switch power supply of high frequency transformer rectifier includes: the power supply module is used for supplying 220V alternating voltage; the alternating current output module is used for outputting adjustable alternating current voltage; the voltage reduction rectification filter module is used for converting 220V alternating voltage into direct voltage; the voltage sampling detection module is used for detecting whether the direct current voltage exceeds a threshold value and stopping supplying power to the alternating current output control module and the direct current output module when the direct current voltage exceeds the threshold value; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when satisfying in alternating current and direct current hybrid output, add AC output control module to alternating current output, low-voltage control high voltage is safer, has adopted voltage sampling detection module simultaneously, has guaranteed the open circuit when circuit voltage is too big, prevents that the device from damaging.
Description
Technical Field
The utility model relates to a switching power supply field specifically is an integrated alternating current-direct current hybrid switch power supply of high frequency transformation rectifier.
Background
The switching power supply is different from a linear power supply, the switching transistor utilized by the switching power supply is mostly switched between a fully-open mode (saturation region) and a fully-closed mode (cut-off region), the two modes have the characteristic of low dissipation, the switching between the two modes has higher dissipation but short time, and therefore energy is saved, and waste heat is generated less. Ideally, the switching power supply itself does not consume electrical energy. Voltage stabilization is achieved by adjusting the time that the transistor is turned on and off.
The output of the switching power supply on the market at present is often a single output direct current power supply, and some equipment requiring low-voltage alternating current often needs a specific switching power supply device and needs improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integrated alternating current-direct current hybrid switch power supply of high frequency transformation rectifier 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:
an integrated AC/DC hybrid switching power supply for a high frequency transformer rectifier, comprising:
the power supply module is used for supplying 220V alternating voltage;
the alternating current output module is used for outputting adjustable alternating current voltage;
the voltage reduction rectification filter module is used for converting 220V alternating voltage into direct voltage;
the voltage sampling detection module is used for detecting whether the direct current voltage exceeds a threshold value and stopping supplying power to the alternating current output control module and the direct current output module when the direct current voltage exceeds the threshold value;
the alternating current output control module is used for controlling the alternating current output module to supply power;
the direct current output module is used for outputting adjustable direct current voltage;
the power supply module is connected with the alternating current output module and the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the voltage sampling detection module, the voltage sampling detection module is connected with the alternating current output control module and the direct current output module, and the alternating current output control module is connected with the alternating current output module.
As a further aspect of the present invention: the voltage sampling detection module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a diode D1, an amplifier U1 and a triode V1, wherein one end of the resistor R2 is connected with the buck rectification filter module, the other end of the resistor R2 is connected with the resistor R3, the resistor R4 and a collector of the triode V1, the other end of the resistor R3 is connected with the resistor R1 and an inverting end of the amplifier U1, the other end of the resistor R1 is grounded, the other end of the resistor R4 is connected with a cathode of the diode D1 and a same-phase end of the amplifier U1, an anode of the diode D1 is grounded, an output end of the amplifier U1 is connected with a base of the triode V1, and an emitter of the triode V1 is connected with the DC output module and the AC output control module.
As a further aspect of the present invention: the direct current output module comprises a resistor R5, a capacitor C2, a controllable precise voltage-stabilizing source Z1, a resistor R6, a resistor R7, a resistor R8 and a potentiometer RP1, one end of the resistor R5 is connected with the potentiometer RP1 and the voltage sampling detection module, the other end of the resistor R5 is connected with the capacitor C2 and the negative electrode of the controllable precise voltage-stabilizing source Z1, the positive electrode of the controllable precise voltage-stabilizing source Z1 is grounded, the other end of the capacitor C2 is connected with the resistor R6, the other end of the resistor R6 is connected with the reference electrode of the controllable voltage-stabilizing source Z1, the resistor R7 and the resistor R8, the other end of the resistor R7 is grounded, and the other end of the resistor R8 is connected with the other end of the potentiometer 874RP 7.
As a further aspect of the present invention: the alternating current output control module comprises a resistor R9, a switch S3, a relay J1 and a diode D2, one end of the resistor R9 is connected with the voltage sampling detection module, the other end of the resistor R9 is connected with the switch S3, the other end of the switch S3 is connected with the cathodes of the relay J1 and the diode D2, the other end of the relay J1 is connected with the anode of the diode D2, and the anode of the diode D2 is grounded.
As a further aspect of the present invention: the alternating current output module comprises a switch S1, one end of the switch S1 is connected with the fifth end of the transformer W, and the fourth end of the transformer W is grounded.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when satisfying in alternating current and direct current hybrid output, add AC output control module to alternating current output, low-voltage control high voltage is safer, has adopted voltage sampling detection module simultaneously, has guaranteed the open circuit when circuit voltage is too big, prevents that the device from damaging.
Drawings
Fig. 1 is a schematic diagram of an ac/dc hybrid switching power supply integrated with a high-frequency transformer rectifier.
Fig. 2 is a circuit diagram of an ac/dc hybrid switching power supply integrated with a high-frequency transformer rectifier.
Fig. 3 is a pin diagram of amplifier LM 358.
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, an ac/dc hybrid switching power supply integrated with a high-frequency transformer rectifier includes:
the power supply module is used for supplying 220V alternating voltage;
the alternating current output module is used for outputting adjustable alternating current voltage;
the voltage reduction rectification filter module is used for converting 220V alternating voltage into direct voltage;
the voltage sampling detection module is used for detecting whether the direct current voltage exceeds a threshold value and stopping supplying power to the alternating current output control module and the direct current output module when the direct current voltage exceeds the threshold value;
the alternating current output control module is used for controlling the alternating current output module to supply power;
the direct current output module is used for outputting adjustable direct current voltage;
the power supply module is connected with the alternating current output module and the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the voltage sampling detection module, the voltage sampling detection module is connected with the alternating current output control module and the direct current output module, and the alternating current output control module is connected with the alternating current output module.
In a specific embodiment: the power supply module supplies 220V alternating current to mains supply voltage, and the voltage reduction rectification filtering module converts the 220V alternating current into low-voltage direct current through a transformer W, a rectifier T and a filter Y to supply power to the voltage sampling detection module.
In this embodiment: referring to fig. 2 and 3, the voltage sampling detection module includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a diode D1, an amplifier U1, and a transistor V1, one end of the resistor R2 is connected to the buck rectifying and filtering module, the other end of the resistor R2 is connected to the resistor R3, the resistor R4, and a collector of the transistor V1, the other end of the resistor R3 is connected to the resistor R1 and an inverting terminal of the amplifier U1, the other end of the resistor R1 is grounded, the other end of the resistor R4 is connected to a negative electrode of the diode D1 and a non-inverting terminal of the amplifier U1, a positive electrode of the diode D1 is grounded, an output end of the amplifier U1 is connected to a base of the transistor V1, and an emitter of the transistor V1 is connected to the dc output module and the ac output control module.
The model of the amplifier U1 selects LM358, which is used as a comparator in the scheme. LM358 is a dual operational amplifier, which includes two independent operational amplifiers with high gain and internal frequency compensation inside, is suitable for single power supply with wide range of power supply voltage, and is also suitable for dual power supply mode, and under the recommended working condition, the power supply current is independent of the power supply voltage.
The resistor R2 is used for limiting current, the voltage on the sampling resistor R1 feeds back the output voltage of the buck rectifying and filtering module, when the output voltage of the buck rectifying and filtering module exceeds a threshold value, the voltage on the resistor R1 is greater than the voltage on the voltage stabilizing diode D1, so that the voltage of the non-inverting terminal of the amplifier U1 is lower than the voltage of the inverting terminal, the amplifier U1 outputs low level, the triode V1 is cut off, and the circuit stops working; when the output voltage of the buck rectifying and filtering module does not exceed the threshold value, the voltage on the resistor R1 is lower than the voltage on the voltage stabilizing diode D1, so that the amplifier U1 outputs high level, and the triode V1 is switched on to supply power for the direct current output module and the alternating current output control module.
In this embodiment: referring to fig. 2, the dc output module includes a resistor R5, a capacitor C2, a controllable precision voltage regulator Z1, a resistor R6, a resistor R7, a resistor R8, and a potentiometer RP1, one end of the resistor R5 is connected to the potentiometer RP1 and the voltage sampling detection module, the other end of the resistor R5 is connected to the cathodes of the capacitor C2 and the controllable precision voltage regulator Z1, the anode of the controllable precision voltage regulator Z1 is grounded, the other end of the capacitor C2 is connected to the resistor R6, the other end of the resistor R6 is connected to the reference electrode of the controllable precision voltage regulator Z1, the resistor R7, and the resistor R8, the other end of the resistor R7 is grounded, and the other end of the resistor R8 is connected to the other end of the potentiometer RP 1.
The output voltage of the triode V1 is the sum of the voltages of the potentiometer RP1, the resistor R7 and the resistor R8, and is also the sum of the voltages of the controllable precision voltage-stabilizing source Z1 and the resistor R5, when the output voltage fluctuation of the triode V1 is increased, the voltage of the resistor R7 is increased, so that the reference voltage of the controllable precision voltage-stabilizing source Z1 is increased, the output voltage of the negative electrode of the controllable precision voltage-stabilizing source Z1 is reduced, the voltage sum of the resistor R5 and the controllable precision voltage-stabilizing source is reduced, and the voltage VOUT1 is reduced; similarly, when the output voltage fluctuation of the triode V1 is reduced, the cathode voltage of the controllable precise voltage-stabilizing source Z1 is increased, so that the voltage VOUT1 is increased, the voltage VOUT1 is stabilized, and when the output voltage VOUT1 needs to be changed, the voltage on the controllable precise voltage-stabilizing source Z1 is changed greatly by adjusting the resistance value of the potentiometer RP1, so that the output voltage VOUT1 is changed.
In this embodiment: referring to fig. 2, the ac output control module includes a resistor R9, a switch S3, a relay J1, and a diode D2, one end of the resistor R9 is connected to the voltage sampling detection module, the other end of the resistor R9 is connected to the switch S3, the other end of the switch S3 is connected to the cathodes of the relay J1 and the diode D2, the other end of the relay J1 is connected to the anode of the diode D2, and the anode of the diode D2 is grounded.
In this embodiment: referring to fig. 2, the ac output module includes a switch S1, one end of the switch S1 is connected to the fifth terminal of the transformer W, and the fourth terminal of the transformer W is grounded.
When alternating current needs to be supplied, switch S3 is closed (the voltage of the branch where switch S3 is located is small through current-limiting resistor R9, safety is guaranteed), so that relay J1 is powered on to work, and then switch S1 is driven to close, output voltage VOUT2, when voltage VOUT2 needs to be changed in size, fifth end (sliding end) position of transformer W is moved, and then the number of turns between the fourth end and the fifth end of transformer W is changed, and then the size of output voltage VOUT2 is changed.
The utility model discloses a theory of operation is: the power supply module supplies 220V alternating current voltage, the alternating current output module outputs adjustable alternating current voltage, the voltage reduction rectification filtering module converts the 220V alternating current voltage into direct current voltage, the voltage sampling detection module detects whether the direct current voltage exceeds a threshold value, the voltage sampling detection module stops supplying power to the alternating current output control module and the direct current output module when the direct current voltage exceeds the threshold value, the alternating current output control module controls the alternating current output module to supply power, and the direct current output module outputs adjustable direct current voltage.
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. The utility model provides an integrated AC/DC hybrid switching power supply of high frequency transformer rectifier which characterized in that:
this integrated alternating current-direct current hybrid switching power supply of high frequency transformer rectifier includes:
the power supply module is used for supplying 220V alternating voltage;
the alternating current output module is used for outputting adjustable alternating current voltage;
the voltage reduction rectification filter module is used for converting 220V alternating voltage into direct voltage;
the voltage sampling detection module is used for detecting whether the direct current voltage exceeds a threshold value and stopping supplying power to the alternating current output control module and the direct current output module when the direct current voltage exceeds the threshold value;
the alternating current output control module is used for controlling the alternating current output module to supply power;
the direct current output module is used for outputting adjustable direct current voltage;
the power supply module is connected with the alternating current output module and the voltage-reducing rectifying and filtering module, the voltage-reducing rectifying and filtering module is connected with the voltage sampling detection module, the voltage sampling detection module is connected with the alternating current output control module and the direct current output module, and the alternating current output control module is connected with the alternating current output module.
2. The HVDC integrated AC-DC hybrid switching power supply of claim 1, wherein the voltage sampling detection module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a diode D1, an amplifier U1 and a transistor V1, one end of the resistor R2 is connected to the buck rectifier-filter module, the other end of the resistor R2 is connected to the resistor R3, the resistor R4 and a collector of the transistor V1, the other end of the resistor R3 is connected to the resistor R1 and an inverting terminal of the amplifier U1, the other end of the resistor R1 is grounded, the other end of the resistor R4 is connected to a negative electrode of the diode D1 and a non-inverting terminal of the amplifier U1, an anode of the diode D1 is grounded, an output terminal of the amplifier U1 is connected to a base of a transistor V1, and an emitter of the transistor V1 is connected to the DC output module and the AC output control module.
3. The integrated AC-DC hybrid switching power supply of the high-frequency transformer rectifier according to claim 1, wherein the DC output module comprises a resistor R5, a capacitor C2, a controllable precise voltage regulator Z1, a resistor R6, a resistor R7, a resistor R8 and a potentiometer RP1, one end of the resistor R5 is connected with the potentiometer RP1 and the voltage sampling detection module, the other end of the resistor R5 is connected with the negative electrodes of the capacitor C2 and the controllable precise voltage regulator Z1, the positive electrode of the controllable precise voltage regulator Z1 is grounded, the other end of the capacitor C2 is connected with the resistor R6, the other end of the resistor R6 is connected with the reference electrode of the controllable precise voltage regulator Z1, the resistor R7 and the resistor R8, the other end of the resistor R7 is grounded, and the other end of the resistor R8 is connected with the other end of the potentiometer RP 1.
4. The integrated AC-DC hybrid switching power supply of claim 1, wherein the AC output control module comprises a resistor R9, a switch S3, a relay J1 and a diode D2, one end of the resistor R9 is connected with the voltage sampling detection module, the other end of the resistor R9 is connected with the switch S3, the other end of the switch S3 is connected with the cathodes of the relay J1 and the diode D2, the other end of the relay J1 is connected with the anode of the diode D2, and the anode of the diode D2 is grounded.
5. The high frequency transformer rectifier integrated AC/DC hybrid switching power supply of claim 4, wherein the AC output module comprises a switch S1, one end of the switch S1 is connected to the fifth end of the transformer W, and the fourth end of the transformer W is grounded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123167342.7U CN216490206U (en) | 2021-12-16 | 2021-12-16 | High-frequency transformer rectifier integrated AC-DC hybrid switching power supply |
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| CN202123167342.7U CN216490206U (en) | 2021-12-16 | 2021-12-16 | High-frequency transformer rectifier integrated AC-DC hybrid switching power supply |
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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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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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