CN205070833U - Capacitanc switch security isolation programmable power supply circuit - Google Patents
Capacitanc switch security isolation programmable power supply circuit Download PDFInfo
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- CN205070833U CN205070833U CN201520875596.XU CN201520875596U CN205070833U CN 205070833 U CN205070833 U CN 205070833U CN 201520875596 U CN201520875596 U CN 201520875596U CN 205070833 U CN205070833 U CN 205070833U
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Abstract
The utility model discloses a capacitanc switch security isolation programmable power supply circuit, including bridge type rectifier circuit, a single -chip microcomputer, the programme -controlled reduction voltage circuit of capacitanc, switch circuit, bridge type rectifier circuit is by triode Q1, Q3 and diode D2, D3 constitutes, the singlechip is connected to the base of triode, the programme -controlled reduction voltage circuit of capacitanc includes electric capacity C2, C3, C4 and triode Q4, Q5, it steps down step by step to constitute the direct current, triode Q4, the singlechip is connected to Q5's base, switch circuit includes two sets of programme -controlled synchro switch, bridge type rectifier circuit's output is connected to first cluster switch, electric capacity C2 and triode Q4's input, electric capacity C2 and triode Q4's output is connected to the second cluster switch, electric capacity C3 and triode Q5's input, two sets of programme -controlled synchro switch are not closed simultaneously. The utility model discloses replace heavy power transformer with the programme -controlled reduction voltage circuit of capacitanc, improved the power factor of commercial power, practiced thrift a large amount of electric energy.
Description
Technical field
The utility model relates to power circuit technical field, more particularly, relates to a kind of capacitance-type switch Secure isolation programmable power supply circuit.
Background technology
Traditional power circuit all be unable to do without safety isolating transformer, while step-down, also can prevent late-class circuit electric shock risk.Transformer belongs to inductive reactive element.In society, all trades and professions use induction reactance electrical equipment all in a large number, such as: motor, injection molding machine, incubator, electric heater, electric heater, electromagnetic oven, electric kettle etc.A large amount of use induction reactance electrical equipment causes huge energy waste can to the mains supply of country, because inductive circuit can make the reactive power of civil power increase, power factor (PF) reduces.If go to compensate perception unnecessary in (neutralization) inductive circuit with capacitive circuit, definitely can increase the active power of civil power theoretically, reduce reactive power, thus improve the power factor (PF) of mains supply.But, also do not see that related documents is openly reported at present.
Utility model content
The technical problems to be solved in the utility model is: there is the problem reducing power factor (PF) for current safety isolating transformer, a kind of capacitance-type switch Secure isolation programmable power supply circuit is provided, eliminate safety isolating transformer, have employed capacitor and carry out step-down, bridge switching circuit carries out Secure isolation, to overcome the deficiencies in the prior art.
The utility model solves the technical scheme that its technical problem adopts: capacitance-type switch Secure isolation programmable power supply circuit, comprise bridge rectifier, single-chip microcomputer, also comprise condenser type program controlled hypertension circuit, switching circuit, described bridge rectifier is by triode Q1, Q3 and diode D2, D3 forms, triode Q1, the base stage of Q3 connects single-chip microcomputer, and described condenser type program controlled hypertension circuit comprises electric capacity C2, C3, C4 and triode Q4, Q5, by electric capacity C2, C3, C4 forms direct current step pressure reducing, triode Q4, the base stage of Q5 connects described single-chip microcomputer, and described switching circuit comprises two groups of program control synchro switches, first group of program control synchro switch K1, K2 connects the output of described bridge rectifier, the input of electric capacity C2 and triode Q4, thus bridge rectifier and late-class circuit can be disconnected by first group of program control synchro switch, second group of program control synchro switch K3, K4 connects the output of electric capacity C2 and triode Q4, the input of electric capacity C3 and triode Q5 is closed when two groups of program control synchro switches are different.
Connect the first output voltage detecting circuit at the input of described first group of program control synchro switch, described output voltage detecting circuit is made up of resistance R7, R8, R9, and resistance R8 connects described single-chip microcomputer.
Also comprise stand-by power supply circuit, described stand-by power supply circuit is made up of triode Q2, electric capacity C1, and the base stage of triode Q2 connects described single-chip microcomputer.
Connect the second output voltage detecting circuit at the output of electric capacity C4, described second output voltage detecting circuit is made up of resistance R12, R13, R14, and resistance R13 connects described single-chip microcomputer simultaneously.
Also comprise the voltage detection circuit for time synchronism calibration, described voltage detection circuit is made up of diode D1, resistance R3, R4, R5.
Compared with prior art, the beneficial effects of the utility model are:
The utility model, according to the feature of capacitance energy storage, adopts bridge switch structure, realizes the object of output safety insulating power supply.Instead of traditional transformer step-down circuit with condenser type program controlled hypertension circuit, eliminate heavy power transformer, both provided cost savings, and turn improved the power factor (PF) of civil power, for country saves a large amount of electric energy, also for power circuit saves hardware space.
The utility model is by bridge switch structure, and applicating software programming technology just achieves the object of power safety isolation easily.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model capacitance-type switch Secure isolation programmable power supply circuit.
Fig. 2 is the one-chip machine port structural representation of the utility model capacitance-type switch Secure isolation programmable power supply circuit.
Fig. 3 is switching circuit embodiment one structural representation of the present utility model.
Fig. 4 is switching circuit embodiment two structural representation of the present utility model.
Fig. 5 is the utility model rectification circuit oscillogram.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
See Fig. 1-5, capacitance-type switch Secure isolation programmable power supply circuit of the present utility model, comprise bridge rectifier 1, single-chip microcomputer, also comprise condenser type program controlled hypertension circuit, switching circuit 3, described bridge rectifier is by triode Q1, Q3 and diode D2, D3 forms, triode Q1, the base stage of Q3 connects single-chip microcomputer, and described condenser type program controlled hypertension circuit comprises electric capacity C2, C3, C4 and triode Q4, Q5, by electric capacity C2, C3, C4 forms direct current step pressure reducing, triode Q4, the base stage of Q5 connects described single-chip microcomputer, and described switching circuit comprises two groups of program control synchro switches, first group of program control synchro switch K1, K2 connects the output of described bridge rectifier, the input of electric capacity C2 and triode Q4, thus bridge rectifier and late-class circuit can be disconnected by first group of program control synchro switch, second group of program control synchro switch K3, K4 connects the output of electric capacity C2 and triode Q4, the input of electric capacity C3 and triode Q5 is closed when two groups of program control synchro switches are different.Traditional bridge rectifier is constituted by a diode, and the utility model is broken the normal procedure, and forms bridge rectifier, controlled by Single Chip Microcomputer (SCM) program by triode and D2, D3.
Connect the first output voltage detecting circuit 2 at the input of described first group of program control synchro switch, described output voltage detecting circuit is made up of resistance R7, R8, R9, and resistance R8 connects described single-chip microcomputer.The utility model also comprises stand-by power supply circuit, and described stand-by power supply circuit is made up of triode Q2, electric capacity C1, and the base stage of triode Q2 connects described single-chip microcomputer.When the undertension that bridge rectifier 1 exports, stored program controlled starts stand-by power supply circuit, with the deficiency of supplementary bridge rectifier, voltage is exported more stable.
Connect the second output voltage detecting circuit 4 at the output of electric capacity C4, described second output voltage detecting circuit is made up of resistance R12, R13, R14, and resistance R13 connects described single-chip microcomputer simultaneously.The utility model also comprises the voltage detection circuit for time synchronism calibration, and described voltage detection circuit is made up of diode D1, resistance R3, R4, R5.
The utility model realizes the effect of grammed switch Secure isolation power supply by multiple functional circuits such as singlechip chip control program, the program control rectification circuit of high voltage transistor, capacitor step-down programme control circut, program control bridge switch Secure isolation circuit, low frequency voltage stabilizing programme control circut, PWM pulse-width modulation circuits.Triode Q1, Q3 and diode D2, D3 tetra-transistors form program control rectification circuit.The course of work of its program control rectification is as follows: Q1, Q3, D2 and the D3 full-wave bridge rectifier circuit with traditional in principle is identical, and difference is, Q1 and Q3 is controlled by Single Chip Microcomputer (SCM) program.And traditional bridge rectifier is four diodes forms open rectification, uncontrolled.
Careerist C2, C3, C4 and triode Q4, Q5 form condenser type direct-current voltage reducing circuit, low frequency voltage stabilizing programme control circut and PWM pulse-width modulation circuit.What K switch 1-K4 formed is bridge switch Secure isolation programme control circut.The course of work is described below: after rectifier circuit rectifies above, and circuit charges sporadically to electric capacity C2, and the voltage on C2 generally can design higher, such as: 100-300VDC.Concrete magnitude of voltage is determined by calculating according to the size of load.What electric capacity C2, C3 and triode Q4 formed is direct-current voltage reducing circuit, carries out step-down by PWM pulse length modulation principle.Its pulse duration is also controlled by B4, B5 by program.
The course of work of K1-K4 tetra-switches is: when K1 and K2 connects, K3 and K4 must close, and now, rectification circuit charges to electric capacity C2; When K1 and K2 closes, K3 and K4 can close, and also can close, and is generally be in closure state.Now, rectification circuit stops, to C2 charging, starting triode Q4 and Q5, being controlled the Kai Heguan of triode Q4 and Q5 by program by port B4 and B5, charges to respectively electric capacity C3 and C4 in the mode of PWM pulse-width modulation.Due to now, K1 and K2 closes, so AC power circuit is above completely isolated, so DC power supply circuit is below Secure isolation.K switch 1 and K2, K3 and K4 are the switches that two groups of functions are different, and two groups of switches can close at no time simultaneously.K1-K4 switch according to the needs of application scenario can selective light lotus root, optoelectronic switch or relay etc.If selective relay, the life-span of relay and the harmony problem of operating frequency be considered.Also all controlled by Single Chip Microcomputer (SCM) program see Fig. 3-4, K1-K4 tetra-switches, control by VK1-VK4 respectively.Four switches can adopt relay system control switch (see figure 3), also can adopt light lotus root switch (see figure 4).
As can be seen from Figure 5, Q1, Q3 two triodes are the needs according to design (calculated) load, are controlled conducting and the closedown of two triodes by program by port B1 and B3.Wherein, triode Q2 and electric capacity C1 forms stand-by power supply circuit, is also controlled by port B2 by program.Resistance R7, R8, R9 form output voltage detecting circuit, are also controlled by port RC2 by program, when rectification circuit power output is inadequate, lucky when power supply zero crossing or supply voltage U1 are less than UO again, then start stand-by power supply circuit by program.Output voltage can be avoided like this to fluctuate excessive situation.Diode D1, with resistance R3, R4, R5 form voltage detection circuit, play time synchronism calibration effect, avoid single-chip microcomputer out of hand because of time irreversibility.
Below openly specific embodiment of the utility model is only; do not form the restriction to the utility model protection range; for the utility model person of an ordinary skill in the technical field; do not departing under general idea prerequisite of the present utility model; according to technical solutions of the utility model do without the need to through the change of creative work and replacement, all should drop within protection range of the present utility model.
Claims (5)
1. capacitance-type switch Secure isolation programmable power supply circuit, comprise bridge rectifier, single-chip microcomputer, it is characterized in that: also comprise condenser type program controlled hypertension circuit, switching circuit, described bridge rectifier is by triode Q1, Q3 and diode D2, D3 forms, triode Q1, the base stage of Q3 connects single-chip microcomputer, described condenser type program controlled hypertension circuit comprises electric capacity C2, C3, C4 and triode Q4, Q5, by electric capacity C2, C3, C4 forms direct current step pressure reducing, triode Q4, the base stage of Q5 connects described single-chip microcomputer, described switching circuit comprises two groups of program control synchro switches, first group of program control synchro switch K1, K2 connects the output of described bridge rectifier, the input of electric capacity C2 and triode Q4, thus bridge rectifier and late-class circuit can be disconnected by first group of program control synchro switch, second group of program control synchro switch K3, K4 connects the output of electric capacity C2 and triode Q4, the input of electric capacity C3 and triode Q5, two groups of program control synchro switches are closed time different.
2. capacitance-type switch Secure isolation programmable power supply circuit according to claim 1, it is characterized in that: connect the first output voltage detecting circuit at the input of described first group of program control synchro switch, described output voltage detecting circuit is made up of resistance R7, R8, R9, and resistance R8 connects described single-chip microcomputer.
3. capacitance-type switch Secure isolation programmable power supply circuit according to claim 2, it is characterized in that: also comprise stand-by power supply circuit, described stand-by power supply circuit is made up of triode Q2, electric capacity C1, and the base stage of triode Q2 connects described single-chip microcomputer.
4. capacitance-type switch Secure isolation programmable power supply circuit according to claim 1, it is characterized in that: connect the second output voltage detecting circuit at the output of electric capacity C4, described second output voltage detecting circuit is made up of resistance R12, R13, R14, and resistance R13 connects described single-chip microcomputer simultaneously.
5. capacitance-type switch Secure isolation programmable power supply circuit according to claim 1, it is characterized in that: also comprise the voltage detection circuit for time synchronism calibration, described voltage detection circuit is made up of diode D1, resistance R3, R4, R5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875596.XU CN205070833U (en) | 2015-11-05 | 2015-11-05 | Capacitanc switch security isolation programmable power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875596.XU CN205070833U (en) | 2015-11-05 | 2015-11-05 | Capacitanc switch security isolation programmable power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN205070833U true CN205070833U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520875596.XU Expired - Fee Related CN205070833U (en) | 2015-11-05 | 2015-11-05 | Capacitanc switch security isolation programmable power supply circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305857A (en) * | 2015-11-05 | 2016-02-03 | 顺德职业技术学院 | Capacitive switch safe isolation program-controlled power supply circuit |
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2015
- 2015-11-05 CN CN201520875596.XU patent/CN205070833U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305857A (en) * | 2015-11-05 | 2016-02-03 | 顺德职业技术学院 | Capacitive switch safe isolation program-controlled power supply circuit |
| CN105305857B (en) * | 2015-11-05 | 2018-07-03 | 顺德职业技术学院 | Capacitance-type switch security isolation programmable power supply circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20191105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |