CN207867383U

CN207867383U - A kind of electronic product energy-saving power supply

Info

Publication number: CN207867383U
Application number: CN201820036566.3U
Authority: CN
Inventors: 邱丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2018-09-14
Anticipated expiration: 2028-01-10

Abstract

The utility model discloses a kind of electronic product energy-saving power supplys, including first resistor to 3rd resistor, first capacitance is to third capacitance, transformer, button switch, rectifier, relay, first diode is to third diode, first triode, second triode, three terminal regulator and potentiometer, compared with prior art, the utility model is when in use, press button switch normal power supply, when load electrical appliance does not generate load, it is automatic to disconnect all power, not only save electric energy, but also safety coefficient can be improved, prevent power supply accelerated ageing, improve service life, it has the value of popularization and application.

Description

A kind of electronic product energy-saving power supply

Technical field

The utility model is related to electronic technology field more particularly to a kind of electronic product energy-saving power supplys.

Background technology

In electronic product, power supply is essential, but the power supply of some electronic products is generally connected directly between power supply In circuit, when not in use, electric energy can be also consumed, not only waste electric energy, but also component accelerated ageing can be caused, it is such as similar to fill As electric appliance, often directly used in charging, when not charging, charger is inserted on power supply always, is often forgotten about and is turned off electricity Charger is pulled out in source, not only wastes power supply, but also bring security risk, accordingly, there exist rooms for improvement.

Utility model content

The purpose of this utility model is that solve the above-mentioned problems and provides a kind of electronic product energy-saving power supply.

The utility model is achieved through the following technical solutions above-mentioned purpose：

The utility model include first resistor to 3rd resistor, the first capacitance to third capacitance, transformer, button switch, Rectifier, relay, the first diode to third diode, the first triode, the second triode, three terminal regulator and current potential One end of device, the first end of primary and AC power connects, the other end of AC power simultaneously with button switch the One end is connected with the first end that relay normally open switchs, the second end of primary simultaneously with the second end of button switch and after The second end of electric appliance normal open switch connects, and the both ends of transformer secondary output and the two of rectifier input terminals connect, and rectifier is just Pole output end simultaneously with the first end of the first capacitance, the first end of relay, the cathode of third diode, the second capacitance first End, three terminal regulator input terminal connect with the first end of third capacitance, the cathode output end of rectifier at the same with the first capacitance Second end, the emitter of the first triode, the first end of potentiometer, the sliding end of potentiometer and electronic product energy-saving power supply Cathode output end connects, and the second end of relay is connect with the collector of the anode of third diode and the first triode simultaneously, The base stage of first triode and the first end of first resistor connect, the second end of first resistor while the second end with the second capacitance Connected with the collector of the second triode, the cathode of three terminal regulator simultaneously with the second end of third capacitance, potentiometer second End is connected with the first end of second resistance, the output end of three terminal regulator while the second end with second resistance, the second triode Emitter and the second diode anode connection, the first end of the base stage of the second triode and 3rd resistor connects, third electricity The second end of resistance is connect with the cathode output end of the cathode of the first diode and electronic product energy-saving power supply simultaneously, the first diode Anode connect with the cathode of the second diode.

The beneficial effects of the utility model are：

The utility model is a kind of electronic product energy-saving power supply, compared with prior art, when the utility model is used, pressing Lower button switchs normal power supply, when load electrical appliance does not generate load, disconnects all power automatically, not only saves electric energy, and And safety coefficient can also be improved, power supply accelerated ageing is prevented, service life is improved, has the value of popularization and application.

Description of the drawings

Fig. 1 is the circuit structure schematic diagram of the utility model.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings：

As shown in Figure 1：The utility model includes first resistor R1 to 3rd resistor R3, the first capacitance C1 to third capacitance C3, transformer T, button switch S, rectifier DR, relay K, the first diode D1 to third diode D3, the first triode VT1, the second triode VT2, three terminal regulator IC and potentiometer RP, the first end of transformer T primary and the one of AC power AC The other end of end connection, AC power AC connects with the first end of button switch S and the first end of relay normally open switch K1 simultaneously It connecing, the second end of transformer T primary is connect with the second end of the second end of button switch S and relay normally open switch K1 simultaneously, The both ends of T grade of transformer are connect with two input terminals of rectifier DR, and the cathode output end of rectifier DR is electric with first simultaneously Hold the first end of C1, the first end of relay K, the cathode of third diode D3, the first end of the second capacitance C2, three terminal regulator The input terminal of IC is connected with the first end of third capacitance C3, the cathode output end of rectifier DR while second with the first capacitance C1 End, the emitter of the first triode VT1, the first end of potentiometer RP, the sliding end of potentiometer RP and electronic product energy-saving power supply Cathode output end connection, the second end of relay K simultaneously with the anode of third diode D3 and the current collection of the first triode VT1 Pole connects, and the base stage of the first triode VT1 connect with the first end of first resistor R1, the second end of first resistor R1 while with the The second end of two capacitance C2 is connected with the collector of the second triode VT2, the cathode of three terminal regulator IC simultaneously with third capacitance The second end of C3, the second end of potentiometer RP are connected with the first end of second resistance R2, and the output end of three terminal regulator IC is simultaneously It is connect with the anode of the second end of second resistance R2, the emitter of the second triode VT2 and the second diode D2, the second triode The base stage of VT2 is connect with the first end of 3rd resistor R3, the second end of 3rd resistor R3 while the cathode with the first diode D1 It is connected with the cathode output end of electronic product energy-saving power supply, the anode of the first diode D1 connects with the cathode of the second diode D2 It connects.

The operation principle of the utility model is as follows：

3.7-8.7V regulated power supplies are constituted by three terminal regulator IC, the first diode D1 and the second diode D2 pressure drops are about For 1.3V, the resistance value of potentiometer RP is adjusted, output voltage can be changed, the resistance value of potentiometer RP often changes 1k, and output voltage becomes Change 1V.

When no load connects, power supply can voluntarily turn off general supply after being delayed after a period of time.This function is by One triode VT1, the second triode VT2, the first diode D1, the second diode D2 and the second capacitance C2 are realized.Load is normal When work, there are about the pressure drops of 1.3V on the first diode D1, the second diode D2 so that the second triode VT2, the one or three pole Pipe VT1 saturation conductions.Relay K work, normal open switch K1 are closed, and ensure electric power loop normal power supply.Meanwhile the second capacitance C2 It is charged to 7-8V by the second triode VT2.When loading disconnection, the second triode VT2 cut-offs, but due to the second capacitance The discharge process of C2, the first triode VT1 will continue to tend to remain on：After one section of delay, the first triode VT1 is cut Only, normal open switch K1 is disconnected, and cuts off entire electric power loop, the control for voluntarily complete switching off wherein delay time is realized, by second The capacity of capacitance C2 determines.When capacity increases, delay time is elongated, and vice versa.If to restore electricity again, as long as pressing Dynamic button switch S.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of electronic product energy-saving power supply, it is characterised in that：Including first resistor to 3rd resistor, the first capacitance to third electricity Appearance, transformer, button switch, rectifier, relay, the first diode to third diode, the first triode, the two or three pole Pipe, three terminal regulator and potentiometer, the first end of primary and one end of AC power connect, the other end of AC power The first end switched simultaneously with the first end of button switch and relay normally open connect, the second end of primary and meanwhile with by The second end of button switch is connected with the second end that relay normally open switchs, the both ends of transformer secondary output and the two of rectifier inputs End connection, the cathode output end of rectifier simultaneously with the first end of the first capacitance, the first end of relay, third diode it is negative Pole, the first end of the second capacitance, three terminal regulator input terminal connected with the first end of third capacitance, the output of the cathode of rectifier End simultaneously with the second end of the first capacitance, the sliding end and electricity of the emitter of the first triode, the first end of potentiometer, potentiometer The cathode output end of sub- product energy-saving electric power connects, the second end of relay while positive and the one or three pole with third diode The collector of pipe connects, and the base stage of the first triode and the first end of first resistor connect, the second end of first resistor simultaneously with The second end of second capacitance is connected with the collector of the second triode, the cathode of three terminal regulator while second with third capacitance End, the second end of potentiometer connects with the first end of second resistance, the output end of three terminal regulator while with the of second resistance The of the anode connection at two ends, the emitter of the second triode and the second diode, the base stage of the second triode and 3rd resistor One end connects, the second end of 3rd resistor while the cathode output end with the cathode and electronic product energy-saving power supply of the first diode The anode of connection, the first diode is connect with the cathode of the second diode.