CN206181484U - Full -bridge rectifier type sound and light control circuit for corridor - Google Patents

Abstract

The utility model discloses a full -bridge rectifier type sound and light control circuit for corridor, its characterized in that: mainly by diode rectifier U, triode VT1, triode VT2, electric capacity C1, electric capacity C2, resistance R1, resistance R2, resistance R3, resistance R4, photo resistance RG, zener diode D, adapter BM and light BL constitute. The utility model is not only simple in structure, and low cost, its structural design is reasonable, and the reaction sensitivity is higher, and stability can be good during the use to can improve the life of light, can satisfy well throws light on when the corridor supplies the pedestrian to pass by uses, is fit for wide use.

Description

A kind of corridor full-bridge rectification formula sound light control circuit

Technical field

The utility model is related to a kind of corridor control circuit, more particularly to a kind of corridor full-bridge rectification formula controlled by sound and light Circuit.

Background technology

For energy-conservation, corridor generally controls illuminating lamp work by the way of acoustic control or acousto-optic control, can when nobody Cause to waste to prevent illuminating lamp to be lit always.But, current corridor lighting generally existing less stable is asked Topic, the life-span for being easily caused illuminating lamp is shortened；Simultaneously its reaction is also not sensitive enough, thus occur corridor lighting often can not The situation of normal illumination so that extremely inconvenient when passing by.

Utility model content

The purpose of this utility model is to provide a kind of corridor full-bridge rectification formula sound light control circuit, to expect to improve The performance of control circuit, so that illuminating lamp can be preferably passerby's illumination.

The utility model is achieved through the following technical solutions：

A kind of corridor full-bridge rectification formula sound light control circuit, mainly by diode rectifier U, triode VT1, triode VT2, positive pole is connected with the positive output end of diode rectifier U, the electric capacity that negative pole is connected with the emitter stage of triode VT1 C1, P pole is connected with the emitter stage of triode VT1, the voltage stabilizing that N poles are connected Jing after resistance R4 with the colelctor electrode of triode VT2 Diode D, positive pole is connected Jing after sound pick-up BM with the emitter stage of triode VT1, negative pole is connected with the base stage of triode VT2 Electric capacity C2, the resistance R1 being serially connected between the positive pole of electric capacity C1 and the N poles of Zener diode D, be serially connected in Zener diode D's Resistance R2 between the positive pole of N poles and electric capacity C2, the resistance being serially connected between the N poles of Zener diode D and the negative pole of electric capacity C2 R3, the photo resistance RG being serially connected between the colelctor electrode of the emitter stage of triode VT1 and triode VT2, and it is serially connected in three poles Illuminating lamp BL compositions between the colelctor electrode of pipe VT1 and the negative output terminal of diode rectifier U；The transmitting of the triode VT1 Pole is connected with the emitter stage of triode VT2, and its base stage is connected with the colelctor electrode of triode VT2；The diode rectifier U Two inputs composition power input.

Further, the diode rectifier U is the full-wave bridge rectifier circuit of four 1N4007 types diode compositions.

Further, the triode VT1 is 3AX81 triodes, and the triode VT2 is 9014 triodes.

The utility model compared with prior art, with advantages below and beneficial effect：

The utility model is not only simple in structure, and with low cost, and its reasonable in design, reaction sensitivity is higher, makes Used time stability is good, so as to improve the service life of illuminating lamp, can well meet corridor for the out-of-date illumination of pedestrian way Use.

Description of the drawings

Fig. 1 is overall structure diagram of the present utility model.

Specific embodiment

The utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not It is limited to this.

Embodiment

As shown in figure 1, corridor of the present utility model full-bridge rectification formula sound light control circuit, mainly by diode rectifier U, triode VT1, triode VT2, electric capacity C1, electric capacity C2, resistance R1, resistance R2, resistance R3, resistance R4, photo resistance RG, surely Pressure diode D, sound pick-up BM and illuminating lamp BL composition.Wherein, the illuminating lamp BL uses common illuminating lamp in fact Existing, what the sound pick-up BM was also adopted by is common sound pick-up realizing, illuminating lamp is seen everywhere in daily life, and pickup Device is used for collected sound signal, is usually used in sound control circuit, and here does not do excessive repeating.

During connection, the positive pole of the electric capacity C1 is connected with the positive output end of diode rectifier U, its negative pole and triode The emitter stage of VT1 is connected.The P poles of the Zener diode D are connected with the emitter stage of triode VT1, its N pole Jing resistance R4 It is connected with the colelctor electrode of triode VT2 afterwards.The positive pole of the electric capacity C2 Jing after sound pick-up BM with the emitter stage phase of triode VT1 Connection, its negative pole is connected with the base stage of triode VT2.The resistance R1 is serially connected in the positive pole and Zener diode D of electric capacity C1 N poles between, the resistance R2 is serially connected between the N poles of Zener diode D and the positive pole of electric capacity C2, and the resistance R3 is serially connected in Between the N poles of Zener diode D and the negative pole of electric capacity C2, the photo resistance RG is serially connected in the emitter stage and three of triode VT1 Between the colelctor electrode of pole pipe VT2, the colelctor electrode that the illuminating lamp BL is serially connected in triode VT1 is negative defeated with diode rectifier U Go out between end.Meanwhile, the emitter stage of the triode VT1 is connected with the emitter stage of triode VT2, its base stage and triode The colelctor electrode of VT2 is connected.Two inputs composition power input of the diode rectifier U, outside the power input Connect mains supply.

During enforcement, two inputs of mains supply Jing diode rectifier U are powered to control circuit of the present utility model, The diode rectifier U uses the full-wave bridge rectifier circuit of four 1N4007 types diode compositions, and power supply can be entered Row full-bridge rectification.The electric capacity C1 is used to filter, and Zener diode D is then used for voltage stabilizing, the capacitance of the electric capacity C1 in the present embodiment For 500 μ F, the Zener diode D is then realized using 2CW110 types Zener diode.The resistance R1 is depressured for current limliting, The resistance of resistance R1 is 150K Ω, and the voltage after step-down is only 3V.

The resistance R2, sound pick-up BM, electric capacity C2, resistance R3, resistance R4 and triode VT2 collectively constitute sound control circuit, Resistance R2 in the present embodiment is 4K Ω, and resistance R3 is 1M Ω, and resistance R4 is 10K Ω, and the capacitance of electric capacity C2 is 25 μ F, described three Pole pipe VT2 is then realized using 9014 triodes.Need not be illuminated using illuminating lamp in bright light, now photo resistance RG Resistance be 1K Ω or so, the colelctor electrode of triode VT2 is in electronegative potential.Even if now someone passes by and sends the sound and sound pick-up BM can collect voice signal, and because the colelctor electrode of triode VT2 is in electronegative potential, then the base stage of triode VT1 is in cut-off State, therefore illuminating lamp BL will not be lit, so as to using electricity wisely.Triode VT1 in the present embodiment adopts the poles of 3A,X81 tri- Pipe is realizing.

Illuminating lamp is needed to illuminate in dim light, now the resistance of photo resistance RG is 1M Ω or so.When someone passes by The sound is sent, sound pick-up BM collects voice signal and voice signal is converted into into electric signal, base stage and the transmitting of triode VT2 Pole is in cut-off state, and its colelctor electrode is then in high potential, then the base stage of triode VT1 is switched on, and illuminating lamp BL then can be by point It is bright, you can be illuminated.Now the positive pole of electric capacity C2 is in high potential, and negative pole is in electronegative potential, and electric current is slow by resistance R3 Charge to electric capacity C2, the base stage of triode VT2 and emitter stage quilt when the voltage of electric capacity C2 positive poles and negative pole two ends reaches balance Conducting, its colelctor electrode is in electronegative potential again, then illuminating lamp BL extinguishes.The charging interval of the electric capacity C2 is then the utility model For the delay time that illuminating lamp BL is lighted, the enough pedestrians of the delay time can ensure that pedestrian's is normal by corridor It is current, while and not resulting in the waste of electric energy.When pedestrian due to the material of footwear causes footsteps lighter when can pass through The mode stamped one's foot or clap one's hands sends the sound, facilitates sound pick-up BM collected sound signals.

Reasonable in design of the present utility model, reaction sensitivity is higher, and stability is good when using, so as to improve The service life of illuminating lamp, can well meet corridor and use for the out-of-date illumination of pedestrian way.

As described above, just can preferably realize the utility model.

Claims (3)

1. a kind of corridor full-bridge rectification formula sound light control circuit, it is characterised in that：Mainly by diode rectifier U, triode VT1, triode VT2, positive pole is connected with the positive output end of diode rectifier U, negative pole is connected with the emitter stage of triode VT1 The electric capacity C1 for connecing, P poles are connected with the emitter stage of triode VT1, N poles are connected Jing after resistance R4 with the colelctor electrode of triode VT2 The Zener diode D for connecing, positive pole is connected Jing after sound pick-up BM with the emitter stage of triode VT1, the base of negative pole and triode VT2 The electric capacity C2 that pole is connected, the resistance R1 being serially connected between the positive pole of electric capacity C1 and the N poles of Zener diode D, is serially connected in voltage stabilizing Resistance R2 between the N poles of diode D and the positive pole of electric capacity C2, be serially connected in the N poles of Zener diode D and electric capacity C2 negative pole it Between resistance R3, the photo resistance RG being serially connected between the colelctor electrode of the emitter stage of triode VT1 and triode VT2, and string The illuminating lamp BL compositions being connected between the negative output terminal of the colelctor electrode of triode VT1 and diode rectifier U；The triode The emitter stage of VT1 is connected with the emitter stage of triode VT2, and its base stage is connected with the colelctor electrode of triode VT2；Two pole Two inputs composition power input of pipe rectifier U.

2. a kind of corridor according to claim 1 full-bridge rectification formula sound light control circuit, it is characterised in that：Two pole Pipe rectifier U is the full-wave bridge rectifier circuit of four 1N4007 types diode compositions.

3. a kind of corridor according to claim 1 full-bridge rectification formula sound light control circuit, it is characterised in that：Three pole Pipe VT1 is 3AX81 triodes, and the triode VT2 is 9014 triodes.