CN205608574U - Alternating current zero passage pressure regulating circuit - Google Patents
Alternating current zero passage pressure regulating circuit Download PDFInfo
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- CN205608574U CN205608574U CN201620344323.7U CN201620344323U CN205608574U CN 205608574 U CN205608574 U CN 205608574U CN 201620344323 U CN201620344323 U CN 201620344323U CN 205608574 U CN205608574 U CN 205608574U
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Abstract
The utility model discloses an alternating current zero passage pressure regulating circuit, including chip IC1, transformer W, triode V1 summation potential ware RP2, the both ends of 220V alternating current are connected at transformer W's winding N1's both ends, and chip IC1's pin 2 and chip IC1's pin 3 are connected respectively to transformer W's winding N2's both ends, chip IC1's 5 stiff ends connecting potentiometre RP1 of pin, and chip IC1's pin 6 is connected to another stiff end of potentiometre RP1. The utility model discloses alternating current zero passage pressure regulating circuit simple structure, components and parts are few, through switching on of control optical coupler, change the sinusoidal waveform quantity that switches on and realize exchanging the pressure regulating in the settlement cycle, and adjust convenient, consequently have with low costs, interference immunity strong and the advantage of stable performance.
Description
Technical field
This utility model relates to a kind of regulating circuit, specifically a kind of alternating current zero passage regulating circuit.
Background technology
Along with improving constantly of people's living standard, electronic equipment has become as a requisite part in life, the most various household electrical appliance bring great convenience to the life of people, work, and this kind of electronic installation is desirable that precision is higher, the power supply of stable performance.The power type of existing market is various, its mid and low-end products are the most, although low-end product has the advantage of price relative to high-end product, but quality is the most as one wishes, all there is the defect such as function singleness, poor, the debugging maintenance difficult of anti-interference in common regulated power supply, although and high-end product reliable in quality, safety and stability, but price is high also allows people hang back.Therefore need to be improved.
Utility model content
The purpose of this utility model is to provide a kind of alternating current zero passage regulating circuit, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of alternating current zero passage regulating circuit，Including chip IC 1、Transformator W、Audion V1 and potentiometer RP2，The two ends of the winding N1 of described transformator W connect the two ends of 220V alternating current，The two ends of the winding N2 of transformator W connect the pin 2 of chip IC 1 and the pin 3 of chip IC 1 respectively，The pin 5 of chip IC 1 connects a fixing end of potentiometer RP1，Another fixing end of potentiometer RP1 connects the pin 6 of chip IC 1，The sliding end of potentiometer RP1 connects resistance R1、The fixing end of of potentiometer RP2、The sliding end of potentiometer RP2、Power supply VCC、The pin 14 of chip IC 2、The pin 4 of chip IC 3 and the pin 8 of chip IC 3，The pin 7 of chip IC 1 connects the pin 1 of chip IC 2，The pin 3 of chip IC 2 connects electric capacity C1，The other end of electric capacity C1 connects the pin 2 of chip IC 3、The other end of resistance R1 and resistance R2，Another fixing end of potentiometer RP2 connects electric capacity C3、The pin 6 of chip IC 3 and the pin 7 of chip IC 3，The pin 3 of chip IC 3 connects resistance R3，The other end of resistance R3 connects resistance R4 and the base stage of audion V1，The emitter stage of audion V1 connects resistance R5 and the pin 1 of chip IC 4，The pin 3 of chip IC 4 connects load A，The other end of load A connects 220V alternating current，The pin 4 of chip IC 4 connects the other end of 220V alternating current，The model of described chip IC 1 is LM311，The model of chip IC 2 is CD4024，The model of chip IC 3 is NE555，The model of chip IC 4 is 4N25.
As preferred version of the present utility model: described power supply VCC is 5V unidirectional current.
Compared with prior art, the beneficial effects of the utility model are: this utility model alternating current zero passage regulating circuit simple in construction, components and parts are few, by controlling the conducting of photo-coupler, change the sinusoidal wave form quantity of conducting in setting cycle and realize AC voltage adjusting, and easy to adjust, the advantage therefore with low cost, strong interference immunity and stable performance.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of alternating current zero passage regulating circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，A kind of alternating current zero passage regulating circuit，Including chip IC 1、Transformator W、Audion V1 and potentiometer RP2，The two ends of the winding N1 of described transformator W connect the two ends of 220V alternating current，The two ends of the winding N2 of transformator W connect the pin 2 of chip IC 1 and the pin 3 of chip IC 1 respectively，The pin 5 of chip IC 1 connects a fixing end of potentiometer RP1，Another fixing end of potentiometer RP1 connects the pin 6 of chip IC 1，The sliding end of potentiometer RP1 connects resistance R1、The fixing end of of potentiometer RP2、The sliding end of potentiometer RP2、Power supply VCC、The pin 14 of chip IC 2、The pin 4 of chip IC 3 and the pin 8 of chip IC 3，The pin 7 of chip IC 1 connects the pin 1 of chip IC 2，The pin 3 of chip IC 2 connects electric capacity C1，The other end of electric capacity C1 connects the pin 2 of chip IC 3、The other end of resistance R1 and resistance R2，Another fixing end of potentiometer RP2 connects electric capacity C3、The pin 6 of chip IC 3 and the pin 7 of chip IC 3，The pin 3 of chip IC 3 connects resistance R3，The other end of resistance R3 connects resistance R4 and the base stage of audion V1，The emitter stage of audion V1 connects resistance R5 and the pin 1 of chip IC 4，The pin 3 of chip IC 4 connects load A，The other end of load A connects 220V alternating current，The pin 4 of chip IC 4 connects the other end of 220V alternating current，The model of described chip IC 1 is LM311，The model of chip IC 2 is CD4024，The model of chip IC 3 is NE555，The model of chip IC 4 is 4N25.
Power supply VCC is 5V unidirectional current.
Operation principle of the present utility model is: in circuit, and the components and parts directly performing pressure regulation are photo-coupler IC4, and the driving electric current needed for its luminous tube is the least.220V civil power is through transformator W blood pressure lowering, and the alternating voltage after blood pressure lowering is after IC 1 shaping, and the cycle of becoming is the square-wave pulse of 20ms, the dutycycle of this pulse adjusted by RP1 after as zero passage lock-out pulse.Cycle set circuit is made up of 7 binary counter IC2.The pulse frequency of IC2 output is the 1/128 of defeated people's pulse frequency, and the cycle is set to T.Monostable circuit IC3 is transported in this pulse, IC3 overturns once when pulse falling edge arrives every Ts, ON time depends on the dutycycle of 20ms zero passage lock-out pulse, the i.e. morning of zero-acrross ing moment is slow, the outfan 3 foot voltage of chip IC 3 is added in the base stage of audion V1, audion V1 is turned on, thus 1 foot of chip IC 4 obtains electric, its internal conducting, load A energising work, during supply voltage zero passage, triggers turn on thyristors, realizing AC voltage adjusting by changing the sinusoidal wave form quantity of conducting in setting cycle, the value of regulator potentiometer RP2 can conveniently regulate voltage.
Claims (2)
- null1. an alternating current zero passage regulating circuit，Including chip IC 1、Transformator W、Audion V1 and potentiometer RP2，It is characterized in that，The two ends of the winding N1 of described transformator W connect the two ends of 220V alternating current，The two ends of the winding N2 of transformator W connect the pin 2 of chip IC 1 and the pin 3 of chip IC 1 respectively，The pin 5 of chip IC 1 connects a fixing end of potentiometer RP1，Another fixing end of potentiometer RP1 connects the pin 6 of chip IC 1，The sliding end of potentiometer RP1 connects resistance R1、The fixing end of of potentiometer RP2、The sliding end of potentiometer RP2、Power supply VCC、The pin 14 of chip IC 2、The pin 4 of chip IC 3 and the pin 8 of chip IC 3，The pin 7 of chip IC 1 connects the pin 1 of chip IC 2，The pin 3 of chip IC 2 connects electric capacity C1，The other end of electric capacity C1 connects the pin 2 of chip IC 3、The other end of resistance R1 and resistance R2，Another fixing end of potentiometer RP2 connects electric capacity C3、The pin 6 of chip IC 3 and the pin 7 of chip IC 3，The pin 3 of chip IC 3 connects resistance R3，The other end of resistance R3 connects resistance R4 and the base stage of audion V1，The emitter stage of audion V1 connects resistance R5 and the pin 1 of chip IC 4，The pin 3 of chip IC 4 connects load A，The other end of load A connects 220V alternating current，The pin 4 of chip IC 4 connects the other end of 220V alternating current，The model of described chip IC 1 is LM311，The model of chip IC 2 is CD4024，The model of chip IC 3 is NE555，The model of chip IC 4 is 4N25.
- Alternating current zero passage regulating circuit the most according to claim 1, it is characterised in that described power supply VCC is 5V unidirectional current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344323.7U CN205608574U (en) | 2016-04-23 | 2016-04-23 | Alternating current zero passage pressure regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344323.7U CN205608574U (en) | 2016-04-23 | 2016-04-23 | Alternating current zero passage pressure regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205608574U true CN205608574U (en) | 2016-09-28 |
Family
ID=56969568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620344323.7U Expired - Fee Related CN205608574U (en) | 2016-04-23 | 2016-04-23 | Alternating current zero passage pressure regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205608574U (en) |
-
2016
- 2016-04-23 CN CN201620344323.7U patent/CN205608574U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170423 |