CN102480817A

CN102480817A - Light switch device controlled by telephone

Info

Publication number: CN102480817A
Application number: CN2010105558321A
Authority: CN
Inventors: 张海艇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-22
Filing date: 2010-11-22
Publication date: 2012-05-30

Abstract

The invention relates to a light switch device controlled by a telephone, which consists of a controlled circuit and a triggering circuit, wherein the controlled circuit comprises four diodes, a two-way diode, a current-limiting resistor and a photoelectric coupler. The triggering circuit comprises an AND gate, a NOT gate, as well as a resistor and a capacitor for delaying time, and a light dependent resistor and another one resistor for monitoring day and night, a two-way controlled silicon, a bulb which enables the two-way diode to be conducted when the telephone ring is in a ringing state. The two-way controlled silicon is conducted owning to voltage triggering, the bulb is lighted. When the conversation is finished and the telephone is hung up, the two-way diode is stop. The two-way controlled silicon is also stop after a time period is delayed, and the bulb is also extinguished after a time period is delayed.

Description

Receive the headlamp switch device of telephone set control

Affiliated technical field

The present invention relates to a kind of headlamp switch device, especially relate to a kind of headlamp switch device that receives telephone set control.

Background technology

At present the Push And Release of light is not controlled by telephone set, and promptly no matter telephone set is in ringing condition still hangs up state, and light does not receive the control of telephone set, this at night light extinguish and will seek switch when receiving phone under the state and feel very much inconvenience.

Summary of the invention

The purpose of this invention is to provide a kind of headlamp switch device that receives telephone set control, it can open light when telephone set is in ringing condition at night automatically, and the time-delay certain hour promptly automatically shuts down light after the on-hook.

For achieving the above object, the technical scheme that the present invention adopts is: a kind of headlamp switch device that receives telephone set control is by a controlled circuit, and circuits for triggering are formed; In controlled circuit, contain four diodes, a bidirectional diode, a current-limiting resistance; A photoelectric coupling circuit, described four diodes connect into a rectifier bridge, and its two inputs are connected with two telephone wires respectively; Described bidirectional diode conducting voltage is to select like this: bidirectional diode conducting when ringing telephone stations; Telephone set ends when on-hook, and an end of described bidirectional diode is connected with the positive output end of rectifier bridge, and the positive pole of the LED of the other end in current-limiting resistance and photoelectric coupling circuit is connected; LED negative pole in the described photoelectric coupling circuit is connected with the negative output terminal of rectifier bridge; LED in described photoelectric coupling circuit conducting when ringing telephone stations is lighted, and when the telephone set on-hook, extinguishes, and can effectively distinguish telephone set like this and be in ringing condition or hook state; The collector electrode of the phototriode in the described photoelectric coupling circuit is connected with the VDD power supply, and an input of the NAND gate in its emitter and the circuits for triggering is connected.

In circuits for triggering, contain a NAND gate, a not gate, resistance that is used to delay time and electric capacity; One is used to monitor the photo resistance and another resistance that still be night daytime; A bidirectional triode thyristor, an in check bulb, described resistance that is used to delay time and capacitance series are between VDD power supply and ground wire; Its electric capacity is connected with an input of resistance joint and NAND gate; Described one is used to monitor photo resistance and another resistance string that still be night daytime and is connected between VDD power supply and the ground wire, and the junction of its photo resistance and another resistance and another input of NAND gate are connected, and the effect of described photo resistance and another resistance is: the input of blocking NAND gate by day; Open the input of NAND gate at night; The output of described NAND gate is connected with the input of said not gate, and the output of said not gate is connected with the control utmost point of said bidirectional triode thyristor, and said bidirectional triode thyristor and bulb string are connected on the AC220V power supply.

Working method of the present invention and principle are: when evening, telephone set was in ringing condition, make the bidirectional diode conducting, so the LED in the photoelectric coupling circuit lights; Phototriode conducting in the photoelectric coupling circuit, NAND gate output low level, not gate output high level; Bidirectional triode thyristor is because of there being the voltage triggered conducting, and bulb is lighted, after the talk-through on-hook; Bidirectional diode ends, so the LED in the photoelectric coupling circuit extinguishes, the phototriode in the photoelectric coupling circuit ends; Export high level behind the NAND gate time-delay certain hour; The not gate output low level behind the certain hour of also delaying time, bidirectional triode thyristor are also delayed time and are ended behind the certain hour, and bulb is also delayed time and extinguished behind the certain hour.

Advantage of the present invention is: evening, light was lighted automatically during ringing telephone stations, can extinguish automatically behind the light time-delay certain hour after the on-hook, and this has made things convenient for people's door to receive calls at night.

Description of drawings

Accompanying drawing is circuit theory diagrams of the present invention

Embodiment

To specifically narrate embodiment of the present invention with reference to accompanying drawing: a kind of headlamp switch device of telephone set control that receives is made up of 1, one circuits for triggering of a controlled circuit 19, in controlled circuit 1, contains four diodes 4,5,6,7; A bidirectional diode 8; 10, four diodes of 9, one photoelectric coupling circuits of a current-limiting resistance 4,5,6,7 connect into a rectifier bridge; Its two inputs are connected with two

telephone wires

2,3 respectively; The conducting voltage of bidirectional diode 8 is to select like this: bidirectional diode 8 conducting when ringing telephone stations, and telephone set ends when on-hook, and an end of bidirectional diode 8 is connected with the positive output end of rectifier bridge; And the positive pole of the LED of the other end in current-limiting resistance 9 and photoelectric coupling circuit 10 is connected; LED negative pole in the photoelectric coupling circuit 10 is connected with the negative output terminal of rectifier bridge, and the collector electrode of the phototriode in the photoelectric coupling circuit 10 is connected with the VDD power supply, and an input of the NAND gate 15 in its emitter and the circuits for triggering 19 is connected.

In circuits for triggering, contain 16, one resistance that are used to delay time of 15, one not gates of a NAND gate 12 and electric capacity 11; One is used to monitor the photo resistance 13 and another electricity sun 14 that still be night daytime; 17, one in check bulbs 18 of a bidirectional triode thyristor, resistance 12 and electric capacity 13 are serially connected between VDD power supply and the ground wire; Electric capacity 13 is connected with the junction of resistance 12 and an input of NAND gate 15; Photo resistance 13 and resistance 14 are serially connected between VDD power supply and the ground wire, and the junction of photo resistance 13 and resistance 14 and another input of NAND gate 15 are connected, and the output of NAND gate 15 is connected with the input of not gate 16; The output of not gate 16 is connected with the control utmost point of bidirectional triode thyristor 17, and bidirectional triode thyristor 17 is serially connected on the AC220V power supply with bulb 18.

Claims

1. a headlamp switch device that receives telephone set control is by a controlled circuit 1; Circuits for triggering 19 are formed; It is characterized in that: four diodes 4,5,6,7 connect into a rectifier bridge, and its two inputs are connected with two telephone wires 2,3 respectively, and an end of bidirectional diode 8 is connected with the positive output end of rectifier bridge; And the positive pole of the LED of the other end in current-limiting resistance 9 and photoelectric coupling circuit 10 is connected, and the LED negative pole in the photoelectric coupling circuit 10 is connected with the negative output terminal of rectifier bridge.

2. the conducting voltage according to claims 1 described bidirectional diode 8 is to select like this: bidirectional diode 8 conducting when ringing telephone stations, telephone set ends when on-hook.