CN103023471A

CN103023471A - Remote power switch powered by rechargeable battery

Info

Publication number: CN103023471A
Application number: CN2012105277793A
Authority: CN
Inventors: 杨富志
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2013-04-03

Abstract

The invention provides a remote power switch powered by a rechargeable battery. The remote power switch powered by rechargeable battery comprises a control circuit (KZ), a key switch (AJ), a TRIAC (tri-electrode AC (alternating current) switch) (TR) and a resistance load (RL). The control circuit is composed of a rechargeable battery (E), a travel switch (AJ-x), an optocoupler (TD), an isolating diode (D), a decode output (JS) and an infrared receiving tube (VD). The remote power switch powered by the rechargeable battery aims at providing a remote power switch in which: when the AJ is switched on, the travel switch can be switched on synchronously; when the AJ is switched off (the travel switch is switched off synchronously) and the TR is turned off, the control circuit can be powered by the rechargeable battery (the mains supply is not required to be changed into a low voltage), the D is isolated and RL is electroless; when the TR is turned on, a 5-volt power supply powers the control circuit and charges the E, the isolation of the D is cancelled; and codes and standby signals can be transferred between the control circuit and the RL. The remote power switch powered by the rechargeable battery can be used as the power switches of the infrared remote devices of televisions and STBs (set top box) and enable the standby power consumption to be reduced from three watts to 5 milliwatts powered by the E.

Description

Remote-controlled power switch with rechargeable battery power supply standby

Technical field

The present invention relates to the switch of household electrical appliance, be specifically related to the remote-controlled power switch of the household electrical appliance such as television set, set-top box.

Background technology

After the shutdown of the household appliance remote control such as television set, set-top box, generally be converted to the normal operation (standby) that low voltage power supply guarantees the circuit such as signal reception, switch control with civil power (AC) by transformer and transforming circuit, the voltage transitions loss of transformer and transforming circuit (conversion efficiency, oneself power consumption) is the main cause that has stand-by power consumption more than 3 watts after the household appliance remote control shutdown such as television set, set-top box.

The content of invention

For the prior art above shortcomings, after the purpose of this invention is to provide the household appliance remote control shutdown such as a kind of television set, set-top box, the circuit such as signal reception, switch control are powered with rechargeable battery, change without civil power, realize stand-by energy-saving (civil power zero-power, rechargeable battery power consumption 5 milliwatts), rechargeable battery obtains the remote-controlled power switch that electric energy replenishes from load (RL) power supply after the start.

The object of the present invention is achieved like this: the remote-controlled power switch with rechargeable battery power supply standby comprises control circuit (KZ), key switch (AJ), bidirectional triode thyristor (TR) and load (RL); It is characterized in that control circuit (KZ) is comprised of rechargeable battery (E), travel switch (AJ-x), isolating diode (2D, 3D, 4D), driving optocoupler (BG, R1, R3, TD), decoding output (JS) and delay circuit (R2, C1) and infrared receiver tube (VD);

The coding input contact of load (RL) is connected with the input pin of receiving tube (VD) output pin with the output (JS) of being connected through isolating diode (4D); The standby signal contact is connected with an end of delay circuit (R2, C1) and the time input pin of the output (JS) of being connected through isolating diode (2D); The 5V contact is connected jointly through isolating diode (3D) and the supply pin of an end of resistance (R3) and the output (JS) of being connected and the supply pin of receiving tube (VD) and an end of travel switch (AJ-x), and the other end of travel switch is connected with the positive pole of rechargeable battery (E); Driving transistor base is connected through the output pin of resistance (R1) with decoding output (JS), collector electrode is connected with the other end of resistance (R3) through optocoupler (TD) input, the first anode of two pin of optocoupler (TD) output and bidirectional triode thyristor (TR) be connected the utmost point and be connected respectively; After the emitter of the grounding leg of the negative pole of rechargeable battery (E) and the grounding leg of receiving tube (VD) and the output (JS) of being connected and the grounding leg of delay circuit (R2, C1) and triode (BG) was connected jointly, the earth point with load (RL) was connected again; Travel switch (AJ-x) links in the same way through the displacement travel synchronization of stroke and key switch (AJ).

Further, described decoding output (JS) is comprised of decoding power-on pulse output (J), isolation (1D) and starting-up signal output (S), J is only effective to the start coding and decoding, pulse output is arranged, invalid to other coding and decoding, no pulse output is connected with the S input after the 1D isolation, draws the time pin.

Remote-controlled power switch technology with rechargeable battery power supply standby provided by the invention, compare with the remote control switch technology of the household electrical appliances such as existing television set, set-top box, different characteristics and an advantage are arranged: can turn-off civil power behind the remote-control closedown fully and can not turn-off civil power; Stand-by power consumption less than 5 milliwatts (rechargeable battery for electrical power consumed) and stand-by power consumption greater than 3 watts (mains-supplied power consumptions).

Travel switch (AJ-x) can guarantee complete machine zero-power (civil power, rechargeable battery all disconnect) when key switch (AJ) disconnected, key switch (AJ) closure, when bidirectional triode thyristor disconnects, the isolation of diode (2D, 3D, 4D), load (RL) can not be worked without electricity, but control circuit has electricity (rechargeable battery power supply) to work.Behind the remote-controlled start-up; the bidirectional triode thyristor conducting; load (RL) gets electric work; 5 volts of power supplys are powered, are charged to rechargeable battery to control circuit through isolating diode (3D); diode (2D, 4D) loses buffer action, and coding, standby signal can normally pass between control circuit and load circuit mutually.

Description of drawings

Fig. 1 is the remote-controlled power switch schematic diagram with rechargeable battery power supply standby

Fig. 2 is that this switch is retrofitted to the connection principle enforcement figure in the set-top box

Embodiment

Be described further below in conjunction with the drawings and specific embodiments.

Fig. 1 Fig. 2 principle is identical, and circuit structure is slightly different.Fig. 1 is marked in decoding power-on pulse output circuit (J) and the circuit such as starting-up signal output circuit (S) and isolating diode (1D) in the solid box, the one, be convenient to draw supply pin and grounding leg, the 2nd, illustrate that the decoding integrated package (chip, module) of function in the solid box all can be used for this control circuit.

Take Fig. 2 as example, be the partial circuit of SD set-top box panel and the schematic diagram that has increased by two isolating diodes (3D, 4D) in the dotted line frame.R5, R6 are that the former machine that keeps moves back idol, biasing resistor, and R5, R6 tie point and VD supply pin path are pressed the X mark and disconnected, access 3D; VD output pin and coding input path are pressed the Y mark and are disconnected access 4D, travel switch (AJ-x) is fixed on key switch (AJ) other (guaranteeing that switch is synchronous), the circuit board that assembles is packed into one two-layer (one side is put No. 7 rechargeable battery another sides of three joints and put circuit board) in small plastic box, and be fixed on empty place in the cabinet, positive supply lead-out wire (comprising the lead-out wire that connects travel switch), ground outlet, coding lead-out wire, standby signal lead-out wire exact connect ion, again controllable silicon lead-out wire exact connect ion.

Operation principle such as rear: AJ disconnects, and AJ-x also disconnects, and complete machine is without electricity; AJ is closed, and AJ-x is also closed, and control circuit obtains E powered operation (standby), 2D, 3D, 4D isolation, and other circuit because TR turn-offs and does not work without electricity in the machine.The signal that VD receives, the 4D isolation can not be sent into the self-contained circuit decoding, can send into 11 pin of CD4060, decoding is by power-on pulse of 6 pin output, and the 1D isolation is sent into delay circuit (C1, R2) and sent into A1 (inverter), and the 2D isolation can not be sent into the standby contact.By A2 (inverter) output starting-up signal, drive TD isolation output through BG and make bidirectional triode thyristor (TR) conducting, other circuit gets electric work in the machine, standby point output starting-up signal (high level) is sent into delay circuit (C1, R2) and A1 through 2D, keeps conducting through circuitorder TR such as A2, TD again.The 5V internal power supply is the E charging through 3D, AJ-x, is the control circuit power supply, and the code signal of VD output can enter in the machine through 4D decodes.VD receives standby signal, standby point output standby signal (low level) is sent into delay circuit (C1, R2) and A1 through 2D, through circuitorder TR time delayed turn-offs such as A2, TD, other circuit because TR turn-offs and does not work without electricity in the machine again, and control circuit becomes E powered operation (standby).AN is service switch.During without rechargeable battery with common batteries also can, but do not turn-off AJ, and do not need to change after remote-controlled start-up (continuously standby), February always.

Can illustrate that from this on-off principle and Fig. 2 embodiment this switch can reequip or be transplanted in the electrical equipment of the infrared remote control switch machines such as television set and video disc player and make remote-controlled power switch, realizes the effect of stand-by energy-saving.

Claims

1. with the remote-controlled power switch of rechargeable battery power supply standby, comprise control circuit (KZ), key switch (AJ), bidirectional triode thyristor (TR) and load (RL); It is characterized in that control circuit (KZ) is comprised of rechargeable battery (E), travel switch (AJ-x), isolating diode (2D, 3D, 4D), driving optocoupler (BG, R1, R3, TD), decoding output (JS) and delay circuit (R2, C1) and infrared receiver tube (VD);