CN204065756U - A kind of SCM Based energy-conservation power-off protecting circuit - Google Patents

Abstract

The utility model discloses a kind of SCM Based energy-conservation power-off protecting circuit, comprise single chip machine controlling circuit, 5V power circuit, 12V power circuit and control relay circuit, single chip machine controlling circuit controls the power supply of power supply according to the information that sensor circuit detects, single chip machine controlling circuit comprises single-chip microcomputer U1 and crystal oscillator Y1; 5V power circuit provides power supply support for single-chip microcomputer, and 5V power circuit comprises rectifier bridge Q1 and three terminal regulator U3; 12V power circuit provides power supply support for control relay circuit, and 12V power circuit comprises rectifier bridge Q2 and three terminal regulator U4; The adhesive of the signal control relay that control relay circuit is provided by single-chip microcomputer, control relay circuit comprises relay K M and diode D2.The utility model provide one both can effectively saves energy, extend electric equipment serviceable life, the SCM Based energy-conservation power-off protecting circuit of electric fire can be prevented again.

Description

A kind of SCM Based energy-conservation power-off protecting circuit

Technical field

The utility model relates to a kind of power-off protecting circuit, specifically a kind of SCM Based energy-conservation power-off protecting circuit.

Background technology

Electric energy brings economic interests for the mankind and facilitates environmental protection, but answers using electricity wisely, notes Electrical Safety, prevents fire from occurring.Reduce costs; increase economic efficiency and Electrical Safety; it is the problem that we should be noted that constantly; the social phenomenon of fire is caused according to some; the utility model aims to provide and a kind ofly both effectively saves energy can extend serviceable life of electric equipment, can prevent again the SCM Based energy-conservation power-off protecting circuit of electric fire.

Utility model content

The purpose of this utility model be to provide one both can effectively saves energy, extend electric equipment serviceable life, the SCM Based energy-conservation power-off protecting circuit of electric fire can be prevented again, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of SCM Based energy-conservation power-off protecting circuit, comprise single chip machine controlling circuit, 5V power circuit, 12V power circuit and control relay circuit, described single chip machine controlling circuit controls the power supply of power supply according to the information that sensor circuit detects, single chip machine controlling circuit comprises single-chip microcomputer U1 and crystal oscillator Y1; Described 5V power circuit provides power supply support for single-chip microcomputer, and 5V power circuit comprises rectifier bridge Q1 and three terminal regulator U3; Described 12V power circuit provides power supply support for control relay circuit, and 12V power circuit comprises rectifier bridge Q2 and three terminal regulator U4; The adhesive of the signal control relay that described control relay circuit is provided by single-chip microcomputer, control relay circuit comprises relay K M and diode D2.

Described single-chip microcomputer U1 pin VCC connects electric capacity C1 positive pole respectively, resistance R2, electric capacity C6, electric capacity C7 and three terminal regulator U3 pin 3, three terminal regulator U3 pin 2 connects the electric capacity C6 other end respectively, the electric capacity C7 other end, electric capacity C4, electric capacity C5 and rectifier bridge Q1 pin 4, three terminal regulator U3 pin 1 connects the electric capacity C4 other end respectively, the electric capacity C5 other end and rectifier bridge Q1 pin 2, rectifier bridge Q1 pin 1 is connection transformer T1 secondary coil and rectifier bridge Q2 pin 1 respectively, rectifier bridge Q1 pin 3 is the connection transformer T1 secondary coil other end and rectifier bridge Q2 pin 3 respectively, rectifier bridge Q2 pin 4 connects electric capacity C8 respectively, electric capacity C9, electric capacity C10, electric capacity C11 and three terminal regulator U4 pin 2, rectifier bridge Q2 pin 2 connects the electric capacity C8 other end respectively, the electric capacity C9 other end and three terminal regulator U4 pin 1, three terminal regulator U4 pin 3 connects the electric capacity C10 other end respectively, the electric capacity C11 other end, operational amplifier U2 pin 4 and triode VT1 emitter, triode VT1 collector connects diode D2 negative pole and relay K M respectively, triode VT1 base stage contact resistance R5, resistance R5 other end connecting triode VT2 collector, triode VT2 emitter connects diode D1 positive pole, diode D1 negative pole connects diode D1 positive pole respectively, the relay K M other end, operational amplifier U2 pin 11, resistance R3, single-chip microcomputer U1 pin VSS, electric capacity C2, electric capacity C3 and resistance R1, described triode VT2 base stage contact resistance R4, resistance R4 other end concatenation operation amplifier U2 pin 1, operational amplifier U2 pin 2 is the contact resistance R2 other end and the resistance R3 other end respectively, operational amplifier U2 pin 3 connects single-chip microcomputer U1 pin P1.0, single-chip microcomputer U1 pin P1.1 connecting sensor circuit, single-chip microcomputer U1 pin RST connects electric capacity C1 negative pole and the resistance R1 other end respectively, single-chip microcomputer U1 pin XTAL1 connects the electric capacity C2 other end and crystal oscillator Y1 respectively, the crystal oscillator Y1 other end connects the electric capacity C3 other end and single-chip microcomputer U1 pin XTAL2 respectively, one end, described transformer T former limit connects 220V respectively and exchanges output B end, relay K M contact and switch S 2, the relay K M contact other end is the connecting valve S2 other end and switch S 1 respectively, switch S 1 other end connects 220V and exchanges input C end, 220V exchanges input D and holds connection 220V interchange respectively to export A end and the transformer T1 primary coil other end.

As the utility model further scheme: described single-chip microcomputer U1 model is AT89S51, described operational amplifier U2 model is LM324A, and described three terminal regulator U3 model is 7805, and described three terminal regulator U4 model is 7812.

Compared with prior art, the beneficial effects of the utility model are: the utility model provide one both can effectively saves energy, extend electric equipment serviceable life, the SCM Based energy-conservation power-off protecting circuit of electric fire can be prevented again.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of SCM Based energy-conservation power-off protecting circuit.

Fig. 2 is the program flow diagram of single-chip microcomputer U1 in SCM Based energy-conservation power-off protecting circuit.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1,2, in the utility model embodiment, a kind of SCM Based energy-conservation power-off protecting circuit, comprise single chip machine controlling circuit, 5V power circuit, 12V power circuit and control relay circuit, single chip machine controlling circuit controls the power supply of power supply according to the information that sensor circuit detects, single chip machine controlling circuit comprises single-chip microcomputer U1 and crystal oscillator Y1; 5V power circuit provides power supply support for single-chip microcomputer, and 5V power circuit comprises rectifier bridge Q1 and three terminal regulator U3; 12V power circuit provides power supply support for control relay circuit, and 12V power circuit comprises rectifier bridge Q2 and three terminal regulator U4; The adhesive of the signal control relay that control relay circuit is provided by single-chip microcomputer, control relay circuit comprises relay K M and diode D2.

Single-chip microcomputer U1 pin VCC connects electric capacity C1 positive pole respectively, resistance R2, electric capacity C6, electric capacity C7 and three terminal regulator U3 pin 3, three terminal regulator U3 pin 2 connects the electric capacity C6 other end respectively, the electric capacity C7 other end, electric capacity C4, electric capacity C5 and rectifier bridge Q1 pin 4, three terminal regulator U3 pin 1 connects the electric capacity C4 other end respectively, the electric capacity C5 other end and rectifier bridge Q1 pin 2, rectifier bridge Q1 pin 1 is connection transformer T1 secondary coil and rectifier bridge Q2 pin 1 respectively, rectifier bridge Q1 pin 3 is the connection transformer T1 secondary coil other end and rectifier bridge Q2 pin 3 respectively, rectifier bridge Q2 pin 4 connects electric capacity C8 respectively, electric capacity C9, electric capacity C10, electric capacity C11 and three terminal regulator U4 pin 2, rectifier bridge Q2 pin 2 connects the electric capacity C8 other end respectively, the electric capacity C9 other end and three terminal regulator U4 pin 1, three terminal regulator U4 pin 3 connects the electric capacity C10 other end respectively, the electric capacity C11 other end, operational amplifier U2 pin 4 and triode VT1 emitter, triode VT1 collector connects diode D2 negative pole and relay K M respectively, triode VT1 base stage contact resistance R5, resistance R5 other end connecting triode VT2 collector, triode VT2 emitter connects diode D1 positive pole, diode D1 negative pole connects diode D1 positive pole respectively, the relay K M other end, operational amplifier U2 pin 11, resistance R3, single-chip microcomputer U1 pin VSS, electric capacity C2, electric capacity C3 and resistance R1, triode VT2 base stage contact resistance R4, resistance R4 other end concatenation operation amplifier U2 pin 1, operational amplifier U2 pin 2 is the contact resistance R2 other end and the resistance R3 other end respectively, operational amplifier U2 pin 3 connects single-chip microcomputer U1 pin P1.0, single-chip microcomputer U1 pin P1.1 connecting sensor circuit, single-chip microcomputer U1 pin RST connects electric capacity C1 negative pole and the resistance R1 other end respectively, single-chip microcomputer U1 pin XTAL1 connects the electric capacity C2 other end and crystal oscillator Y1 respectively, the crystal oscillator Y1 other end connects the electric capacity C3 other end and single-chip microcomputer U1 pin XTAL2 respectively, one end, transformer T former limit connects 220V respectively and exchanges output B end, relay K M contact and switch S 2, the relay K M contact other end is the connecting valve S2 other end and switch S 1 respectively, switch S 1 other end connects 220V and exchanges input C end, 220V exchanges input D and holds connection 220V interchange respectively to export A end and the transformer T1 primary coil other end.

As the utility model further scheme: single-chip microcomputer U1 model is AT89S51, operational amplifier U2 model is LM324A, and three terminal regulator U3 model is 7805, and three terminal regulator U4 model is 7812.

Principle of work of the present utility model is: according to Fig. 1, switch S 1 is manual power switch, when switch S 2 closes, single-chip microcomputer U1 startup optimization, through about 2S, the relay K M closing of contact, alternating current 220V power supply can be electric equipment continued power, after power supply 5min, single-chip microcomputer U1 controls the power supply of power supply according to the information that sensor circuit detects, when a certain road sensor detects that information makes single-chip microcomputer pin P1.1 be high level, single-chip microcomputer U1 pin P1.0 exports the pin 3 of 5V high level to operational amplifier U2, and the pin 2 of operational amplifier U2 only has 1.5V, the pin 1 of such operational amplifier U2 exports high level makes triode VT1 and triode VT2 conducting, 12V power circuit can be powered for relay K M simultaneously, the adhesive of relay K M contact, alternating current 220V is made to can be electric equipment normal power supply.When sensor circuit detects that information makes single-chip microcomputer pin P1.1 be low level, after time delay 1min, again detect single-chip microcomputer pin P1.1, if 5min single-chip microcomputer pin P1.1 is low level continuously, then makes single-chip microcomputer pin P1.0 output low level to operational amplifier U2 pin 3, make operational amplifier U2 pin 1 output low level to triode VT2 base stage, triode VT2 and triode VT1 all ends, relay K M power-off, relay K M contact disconnects, and cuts away alternating current 220V and powers.

As one of embodiment of the present utility model, the utility model can be used for detecting in family parlor have unmanned in, power supply all alternating current 220V output terminal output from Fig. 1 of all consumers in parlor except electricity consumption when illuminating lamp etc. needs long.Like this, after consumer in parlor starts, when sensor circuit detects in continuous 5min parlor unmanned, then all power supplys of parlor district except electricity consumption when illuminating lamp etc. needs long cut off all automatically, both electric energy had been saved, extend again the service time of electric equipment, effectively can prevent the generation of electric fire.

Claims (2)

1. a SCM Based energy-conservation power-off protecting circuit, comprise single chip machine controlling circuit, 5V power circuit, 12V power circuit and control relay circuit, it is characterized in that, described single chip machine controlling circuit controls the power supply of power supply according to the information that sensor circuit detects, single chip machine controlling circuit comprises single-chip microcomputer U1 and crystal oscillator Y1; Described 5V power circuit provides power supply support for single-chip microcomputer, and 5V power circuit comprises rectifier bridge Q1 and three terminal regulator U3; Described 12V power circuit provides power supply support for control relay circuit, and 12V power circuit comprises rectifier bridge Q2 and three terminal regulator U4; The adhesive of the signal control relay that described control relay circuit is provided by single-chip microcomputer, control relay circuit comprises relay K M and diode D2:

Described single-chip microcomputer U1 pin VCC connects electric capacity C1 positive pole respectively, resistance R2, electric capacity C6, electric capacity C7 and three terminal regulator U3 pin 3, three terminal regulator U3 pin 2 connects the electric capacity C6 other end respectively, the electric capacity C7 other end, electric capacity C4, electric capacity C5 and rectifier bridge Q1 pin 4, three terminal regulator U3 pin 1 connects the electric capacity C4 other end respectively, the electric capacity C5 other end and rectifier bridge Q1 pin 2, rectifier bridge Q1 pin 1 is connection transformer T1 secondary coil and rectifier bridge Q2 pin 1 respectively, rectifier bridge Q1 pin 3 is the connection transformer T1 secondary coil other end and rectifier bridge Q2 pin 3 respectively, rectifier bridge Q2 pin 4 connects electric capacity C8 respectively, electric capacity C9, electric capacity C10, electric capacity C11 and three terminal regulator U4 pin 2, rectifier bridge Q2 pin 2 connects the electric capacity C8 other end respectively, the electric capacity C9 other end and three terminal regulator U4 pin 1, three terminal regulator U4 pin 3 connects the electric capacity C10 other end respectively, the electric capacity C11 other end, operational amplifier U2 pin 4 and triode VT1 emitter, triode VT1 collector connects diode D2 negative pole and relay K M respectively, triode VT1 base stage contact resistance R5, resistance R5 other end connecting triode VT2 collector, triode VT2 emitter connects diode D1 positive pole, diode D1 negative pole connects diode D1 positive pole respectively, the relay K M other end, operational amplifier U2 pin 11, resistance R3, single-chip microcomputer U1 pin VSS, electric capacity C2, electric capacity C3 and resistance R1, described triode VT2 base stage contact resistance R4, resistance R4 other end concatenation operation amplifier U2 pin 1, operational amplifier U2 pin 2 is the contact resistance R2 other end and the resistance R3 other end respectively, operational amplifier U2 pin 3 connects single-chip microcomputer U1 pin P1.0, single-chip microcomputer U1 pin P1.1 connecting sensor circuit, single-chip microcomputer U1 pin RST connects electric capacity C1 negative pole and the resistance R1 other end respectively, single-chip microcomputer U1 pin XTAL1 connects the electric capacity C2 other end and crystal oscillator Y1 respectively, the crystal oscillator Y1 other end connects the electric capacity C3 other end and single-chip microcomputer U1 pin XTAL2 respectively, one end, described transformer T former limit connects 220V respectively and exchanges output B end, relay K M contact and switch S 2, the relay K M contact other end is the connecting valve S2 other end and switch S 1 respectively, switch S 1 other end connects 220V and exchanges input C end, 220V exchanges input D and holds connection 220V interchange respectively to export A end and the transformer T1 primary coil other end.

2. SCM Based energy-conservation power-off protecting circuit according to claim 1; it is characterized in that, described single-chip microcomputer U1 model is AT89S51, and described operational amplifier U2 model is LM324A; described three terminal regulator U3 model is 7805, and described three terminal regulator U4 model is 7812.