CN2907077Y - Power supply module - Google Patents
Power supply module Download PDFInfo
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- CN2907077Y CN2907077Y CN 200620058636 CN200620058636U CN2907077Y CN 2907077 Y CN2907077 Y CN 2907077Y CN 200620058636 CN200620058636 CN 200620058636 CN 200620058636 U CN200620058636 U CN 200620058636U CN 2907077 Y CN2907077 Y CN 2907077Y
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Abstract
The utility model relates to a power supply module, which comprises a power input port, a rectifying circuit and at least a DC power output port, the utility model is characterized in that a resistance is connected in series between the power input port and the input port of the rectifying circuit, a voltage-regulating control circuit is arranged between the rectifying circuit and the DC power output port, the voltage-regulating control circuit comprises a single-direction thyristor, a capacitor and a thyristor triggering circuit, wherein the anode of the single-direction thyristor is connected with the positive voltage output end of the rectifying circuit and the cathode of the single-direction thyristor is connected with the positive voltage output end of the DC power output port, the thyristor triggering circuit comprises a zener diode and a resistance, the anode of the zener diode is connected with the negative voltage output end of the rectifying circuit, the cathode of the zener diode is simultaneously connected with one end of the resistance and the control pole of the single-direction thyristor, the other end of the resistance is connected with the anode of the single-direction thyristor. The utility model has the advantages of high stability and reliability, low power consumption, small heating quantity, small occupation space and low cost.
Description
Technical field
The utility model relates to a kind of power module that alternating current can be converted to direct current output.
Background technology
Existing with the transformer step-down and obtain the power module of low-voltage DC from civil power (alternating current) through the mode of rectification circuit rectification, the size of its output voltage is influenced by input voltage mainly in the course of the work, when input voltage (being line voltage) is unstable, the output voltage of power module is also unstable, so the stability of power module and reliability are not enough.In addition, the power consumption of this power module is big, and caloric value is big; Transformer takes up space greatly, increases the power module occupation space.
Summary of the invention
The purpose of this utility model provides a kind of stability and reliability height, power consumption and caloric value are little and the little power module that takes up room.The technical scheme that adopts is as follows:
A kind of power module comprises power input mouth, rectification circuit and at least one DC output end mouth, it is characterized in that: series connection one resistance between the input port of described power input mouth and rectification circuit; Be provided with controlling circuit of voltage regulation between rectification circuit and the DC output end mouth, controlling circuit of voltage regulation comprises an one-way SCR, one electric capacity and thyristor gating circuit, wherein the anode of one-way SCR connects the malleation output of rectification circuit, negative electrode connects the malleation output of DC output end mouth, the electric capacity two ends connect the malleation output and the negative pressure output of DC output end mouth respectively, thyristor gating circuit comprises voltage stabilizing didoe and resistance, the anode of voltage stabilizing didoe connects the negative pressure output of rectification circuit, negative electrode connects an end of resistance and the control utmost point of one-way SCR simultaneously, and the other end of resistance connects the anode of one-way SCR.The negative pressure output of above-mentioned rectification circuit is connected with the negative pressure output of DC output end mouth, is the same point in the circuit.The resistance of connecting between the input port of above-mentioned power input mouth and rectification circuit plays metering function, preferably ceramic resistance.The stable of DC output end mouth output voltage kept in the chargeable and discharge of above-mentioned electric capacity, and preferably this electric capacity is electrochemical capacitor.The resistance of above-mentioned connection voltage stabilizing didoe negative electrode can be single resistance, also can be by a plurality of resistance series connection and/or in parallel and form.
For the direct voltage that makes DC output end mouth output more stable, can between controlling circuit of voltage regulation and DC output end mouth, direct current regulation circuit be set, the positive pressure input port of direct current regulation circuit is connected the negative electrode of one-way SCR and the negative pressure output of rectification circuit respectively with the negative pressure input, and the output port of direct current regulation circuit connects the DC output end mouth.Above-mentioned direct current regulation circuit is handled the direct voltage of controlling circuit of voltage regulation output, can make direct voltage more stable, and can change magnitude of voltage.As required, one or more direct current regulation circuits can be set, corresponding one or more DC output end mouths provide corresponding one or more direct voltage, satisfy the requirement of circuit.Preferred above-mentioned direct current regulation circuit comprises a three-terminal voltage-stabilizing pipe, the input pin of three-terminal voltage-stabilizing pipe connects the negative electrode of one-way SCR, output pin connects the malleation output of DC output end mouth, grounding pin connects the negative pressure output (also being the negative pressure output of DC output end mouth) of rectification circuit, connect an electric capacity between input pin and the grounding pin, also connect an electric capacity between output pin and the grounding pin.The stable of direct current regulation circuit input voltage and DC output end mouth output voltage kept in the chargeable and discharge of above-mentioned two electric capacity respectively, and preferably this two electric capacity is electrochemical capacitor.
Between the malleation output of DC output end mouth and negative pressure output, also can connect an electric capacity, strobe.
As required, between the control utmost point of the negative electrode of voltage stabilizing didoe and one-way SCR, also can be connected a resistance, make the voltage of voltage ratio voltage stabilizing didoe negative electrode of the one-way SCR control utmost point lower slightly.
As required, between the malleation output of the negative electrode of one-way SCR and DC output end mouth, and/or be connected one or more diodes between the positive pressure input port of the negative electrode of one-way SCR and direct current regulation circuit, the anode of diode connects the negative electrode of one-way SCR, diode plays step-down effect (cathode voltage of each diode is than low approximately 0.7 volt of anode voltage), makes the voltage of voltage ratio one-way SCR negative electrode of positive pressure input port of the malleation output of DC output end mouth and/or direct current regulation circuit lower slightly.
This power module can also produce count pulse, the brain clock of can powering uses, power module is provided with the end line that count pulse is provided, the described end line that count pulse is provided can directly connect the negative electrode of voltage stabilizing didoe, frequency of its output pulse equals twice from the ac frequency of power input mouth input (when mains frequency is 50Hz, counting pulse frequency is 100Hz, and pulse duration is 10ms, and the voltage peak of pulse is the reverse breakdown voltage of voltage stabilizing didoe); When the reverse breakdown voltage of voltage stabilizing didoe when higher, can be at the two ends of a voltage stabilizing didoe bleeder circuit in parallel, bleeder circuit can be made up of two or more resistance of series connection, requirement according to the voltage peak of count pulse, the described end line that count pulse is provided is connected in the appropriate location of bleeder circuit, and frequency of its output pulse equals from the twice of the ac frequency of power input mouth input.
The utility model adopts one-way SCR and voltage stabilizing didoe to carry out transformation and voltage stabilizing control, the direct voltage of output depends primarily on the reverse breakdown voltage of voltage stabilizing didoe, output voltage was unaffected when input voltage was unstable, therefore stability and reliability height can obtain galvanic current pressure more under the cooperation of direct current regulation circuit; Because do not have transformer, so power consumption is little, caloric value is little, occupation space is also smaller, and cost is lower.The utility model also is applicable to be handled direct voltage input carrying out voltage stabilizing, and the output galvanic current is pressed, but can not produce count pulse this moment.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model one preferred embodiment;
Fig. 2 is the voltage oscillogram that A is ordered among Fig. 1;
Fig. 3 is the voltage oscillogram that B is ordered among Fig. 1;
Fig. 4 is the voltage oscillogram that C is ordered among Fig. 1.
Embodiment
As shown in Figure 1, this power module comprises power input mouth 1, rectification circuit 2 (full-wave rectification) and two DC output end mouths 3,4, series resistance R1 between the input port of power input mouth 1 and rectification circuit 2,1 metering function of resistance R adopts ceramic resistor; Be provided with controlling circuit of voltage regulation 5 between rectification circuit 2 and the DC output end mouth 3, controlling circuit of voltage regulation 5 comprises one-way SCR U1 (MCR100-6), electrochemical capacitor C3 and thyristor gating circuit, wherein the anode of one-way SCR U1 connects the malleation output of rectification circuit 2, negative electrode connects the malleation output of DC output end mouth 3, electrochemical capacitor C3 two ends connect the malleation output and the negative pressure output of DC output end mouth 3 respectively, thyristor gating circuit comprises voltage stabilizing didoe D5 and resistance (this resistance is composed in series by resistance R 2 and R3), the anode of voltage stabilizing didoe D5 connects the negative pressure output of rectification circuit 2, negative electrode connects an end of resistance (resistance R 2 and R3 series connection), voltage stabilizing didoe D5 negative electrode also connects an end of resistance R 4, the other end of resistance R 4 connects the control utmost point of one-way SCR U1, and the other end of resistance (resistance R 2 and R3 series connection) is connected the anode of one-way SCR U1.The negative pressure output of rectification circuit 2 is connected with the negative pressure output of DC output end mouth 3, is the same point in the circuit.
Between controlling circuit of voltage regulation 5 and DC output end mouth 4, direct current regulation circuit 6 is set, the positive pressure input port of direct current regulation circuit 6 is connected the negative electrode of one-way SCR U1 and the negative pressure output of rectification circuit 2 respectively with the negative pressure input, and the output port of direct current regulation circuit 6 connects DC output end mouth 4.Direct current regulation circuit 6 comprises three-terminal voltage-stabilizing pipe U2, the input pin of three-terminal voltage-stabilizing pipe U2 (78L05) (pin 3) connects the negative electrode of one-way SCR U1, output pin (pin 1) connects the malleation output of DC output end mouth 4, grounding pin (pin 2) connects the negative pressure output (also being the negative pressure output of DC output end mouth 4) of rectification circuit 2, connect electrochemical capacitor C3 (electrochemical capacitor C3 and controlling circuit of voltage regulation 5 are shared) between input pin and the grounding pin, connect electrochemical capacitor C5 between output pin and the grounding pin.The stable of direct current regulation circuit 6 input voltages and DC output end mouth 4 output voltages kept in the chargeable and discharge of electrochemical capacitor C3 and electrochemical capacitor C5 respectively.
Between the malleation output of DC output end mouth 3 and negative pressure output, connect capacitor C 4, between the malleation output of DC output end mouth 4 and negative pressure output, connect capacitor C 6, strobe.
(also being simultaneously between the positive pressure input port of negative electrode and direct current regulation circuit 6 of one-way SCR U1) is connected a diode D6 between the malleation output of the negative electrode of one-way SCR U1 and DC output end mouth 3, the anode of diode D6 connects the negative electrode of one-way SCR U1, and diode D6 plays step-down effect (but step-down about 0.7 volt).
This power module can also produce count pulse, power supply brain clock uses, power module is provided with the end line (line of the band arrow that connection C is ordered among Fig. 1) that count pulse is provided, at the two ends of voltage stabilizing didoe bleeder circuit 7 in parallel, bleeder circuit is made up of two resistance R 5, R6 of series connection, the above-mentioned end line that count pulse is provided is connected in the tie point of resistance R 5, R6, and frequency of its output pulse equals from the twice of the ac frequency of power input mouth 1 input.
As required, one or more direct current regulation circuits and corresponding DC output end mouth can be set, corresponding one or more direct voltage is provided, satisfy the requirement of circuit.
When the A point voltage is higher than 12 volts, the anode voltage of one-way SCR U1 is higher than cathode voltage, while voltage stabilizing didoe D5 reverse breakdown, the B point voltage is 12 volts, can be one-way SCR U1 triggering signal is provided, and makes one-way SCR U1 conducting, for DC output end mouth 3 provides direct voltage, simultaneously to electrochemical capacitor C3 charging (voltage at electrochemical capacitor C3 two ends raises in the charging process), and for direct current regulation circuit 6 provides input voltage, DC output end mouth 4 another direct voltages of output; Rising along with electrochemical capacitor C3 voltage, the cathode voltage of one-way SCR U1 also raises, when the cathode voltage of one-way SCR U1 is higher than the control pole tension, one-way SCR U1 ends, electrochemical capacitor C3 discharge this moment, for DC output end mouth 3 provides direct voltage, provide input voltage for direct current regulation circuit 6 simultaneously; The voltage at two ends reduces in the electrochemical capacitor C3 discharge process, the cathode voltage of one-way SCR U1 is also along with reduction, when the cathode voltage of one-way SCR U1 is lower than the control pole tension, one-way SCR U1 conducting once again, for DC output end mouth 3 provides direct voltage, simultaneously to electrochemical capacitor C3 charging, and provide input voltage for direct current regulation circuit 6; Like this, one-way SCR U1 switches between the conduction and cut-off two condition in turn, and electrochemical capacitor C3 switches between the charge/discharge two condition in turn, makes the more stable direct voltage of DC output end mouth 3,4 outputs.When the A point voltage is lower than 12 volts, voltage stabilizing didoe D5 is by (having higher resistance this moment), the anode voltage of one-way SCR U1 is lower than cathode voltage, one-way SCR U1 ends, and electrochemical capacitor C3 discharge this moment is for DC output end mouth 3 provides direct voltage, provide input voltage for direct current regulation circuit 6 simultaneously, because electrochemical capacitor C3 capacity is bigger, and that the A point voltage is lower than time of 12 volts is shorter, so the more stable direct voltage of the discharge sufficient to guarantee of electrochemical capacitor C3 is exported.
As shown in Figure 2, civil power is through full-wave rectification, and the cycle of A point voltage is half of civil power cycle, and frequency is the twice of mains frequency.As shown in Figure 3, the voltage of B point (being voltage stabilizing didoe D5 negative electrode) is by A point voltage decision, when the A point voltage is higher than 12 volts, and voltage stabilizing didoe D5 reverse breakdown, 12 volts of B point voltage maintenances; When the A point voltage is lower than 12 volts, voltage stabilizing didoe D5 ends, have bigger resistance, form a bleeder circuit, when the A point voltage is zero with resistance R 2, R3, the B point voltage also is zero, therefore the waveform of B point voltage is an impulse waveform, and pulse duration equals the cycle of A point voltage, is half of civil power cycle, frequency is the twice of mains frequency, and its high level is 12 volts.As shown in Figure 4, the C point voltage is obtained by B point voltage dividing potential drop, so the waveform of C point voltage also is an impulse waveform, and pulse duration equals the cycle of A point voltage, for the civil power cycle half, frequency then is the twice of civil power, and its high level is about 4 volts, mains frequency is 50Hz, then the frequency of C point voltage is 100Hz, and the cycle is 10ms (millisecond), this frequency (cycle) quite stable, therefore be suitable as count pulse, power supply brain clock uses.
Claims (8)
1, a kind of power module comprises power input mouth, rectification circuit and at least one DC output end mouth, it is characterized in that: series connection one resistance between the input port of described power input mouth and rectification circuit; Be provided with controlling circuit of voltage regulation between rectification circuit and the DC output end mouth, controlling circuit of voltage regulation comprises an one-way SCR, one electric capacity and thyristor gating circuit, wherein the anode of one-way SCR connects the malleation output of rectification circuit, negative electrode connects the malleation output of DC output end mouth, the electric capacity two ends connect the malleation output and the negative pressure output of DC output end mouth respectively, thyristor gating circuit comprises voltage stabilizing didoe and resistance, the anode of voltage stabilizing didoe connects the negative pressure output of rectification circuit, negative electrode connects an end of resistance and the control utmost point of one-way SCR simultaneously, and the other end of resistance connects the anode of one-way SCR.
2, power module according to claim 1, it is characterized in that: between described controlling circuit of voltage regulation and the DC output end mouth direct current regulation circuit is set, the positive pressure input port of direct current regulation circuit is connected the negative electrode of one-way SCR and the negative pressure output of rectification circuit respectively with the negative pressure input, and the output port of direct current regulation circuit connects the DC output end mouth.
3, power module according to claim 2, it is characterized in that: described direct current regulation circuit comprises a three-terminal voltage-stabilizing pipe, the input pin of three-terminal voltage-stabilizing pipe connects the negative electrode of one-way SCR, output pin connects the malleation output of DC output end mouth, grounding pin connects the negative pressure output of rectification circuit, connect an electric capacity between input pin and the grounding pin, also connect an electric capacity between output pin and the grounding pin.
4, according to each described power module of claim 1～3, it is characterized in that: connect an electric capacity between the malleation output of described DC output end mouth and the negative pressure output.
5, according to each described power module of claim 1～3, it is characterized in that: be connected a resistance between the control utmost point of the negative electrode of described voltage stabilizing didoe and one-way SCR.
6, according to each described power module of claim 1～3, it is characterized in that: between the malleation output of the negative electrode of described one-way SCR and DC output end mouth, and/or being connected one or more diodes between the positive pressure input port of the negative electrode of one-way SCR and direct current regulation circuit, the anode of diode connects the negative electrode of one-way SCR.
7, according to each described power module of claim 1～3, it is characterized in that: described power module is provided with the end line that count pulse is provided, the described negative electrode that the end line connection voltage stabilizing didoe of count pulse is provided.
8, according to each described power module of claim 1～3, it is characterized in that: described power module is provided with the end line that count pulse is provided, the two ends of a voltage stabilizing didoe bleeder circuit in parallel, bleeder circuit is made up of two or more resistance of series connection, and the described end line that count pulse is provided is connected in the appropriate location of bleeder circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620058636 CN2907077Y (en) | 2006-04-27 | 2006-04-27 | Power supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620058636 CN2907077Y (en) | 2006-04-27 | 2006-04-27 | Power supply module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2907077Y true CN2907077Y (en) | 2007-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620058636 Expired - Lifetime CN2907077Y (en) | 2006-04-27 | 2006-04-27 | Power supply module |
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| Country | Link |
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| CN (1) | CN2907077Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039305A (en) * | 2018-08-02 | 2018-12-18 | 黄琦 | A kind of circuit generating clock pulse signal based on alternating current |
-
2006
- 2006-04-27 CN CN 200620058636 patent/CN2907077Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039305A (en) * | 2018-08-02 | 2018-12-18 | 黄琦 | A kind of circuit generating clock pulse signal based on alternating current |
| CN109039305B (en) * | 2018-08-02 | 2021-11-09 | 黄琦 | Circuit for generating clock pulse signal based on alternating current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG TONZE ELECTRIC APPLIANCES CO., LTD. Free format text: FORMER NAME: TIANJI ELECTRIC APPHIANCE CO., LTD., GUANGDONG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 515021 Guangdong city of Shantou province Chaoshan road Jinyuan Industrial City area 12-12 Patentee after: Guangdong Tonze Electric Co., Ltd. Address before: 515021 Guangdong city of Shantou province Chaoshan road Jinyuan Industrial City area 12-12 Patentee before: Tianji Electric Apphiance Co., Ltd., Guangdong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070530 |
|
| EXPY | Termination of patent right or utility model |