CN211352561U

CN211352561U - Sound control lamp circuit

Info

Publication number: CN211352561U
Application number: CN201921051981.7U
Authority: CN
Inventors: 张瑞华
Original assignee: Shaanxi Institute of International Trade and Commerce
Current assignee: Shaanxi Institute of International Trade and Commerce
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-08-25
Anticipated expiration: 2029-07-08

Abstract

The utility model discloses a sound control LAMP circuit, including first resistance R1, second resistance R2, third resistance R3, fourth resistance R4, fifth resistance R5, sixth resistance R6, seventh resistance R7, eighth resistance R8, ninth resistance R9, tenth resistance R10, photo resistance GLR, first electric capacity C1, second electric capacity C2, third electric capacity C3, first triode V1, second triode V2, third triode V3, fourth triode V4, first diode D1, second diode D2, third diode D3, fourth diode D4, fifth diode D5, silicon controlled rectifier V5, light LAMP, microphone MIC. The sound control lamp circuit of the utility model lights the lighting lamp when sound waves are transmitted into the microphone; when the lamp is illuminated, the lamp is turned off, so that the lamp is convenient to use and beneficial to saving electric energy.

Description

Sound control lamp circuit

Technical Field

The utility model relates to a lighting circuit, concretely relates to sound control lamp circuit.

Background

Current acoustic control lighting lamp circuit, the lamp is bright when light has sound to pass in when not good, but when light is good, also can go out the condition that the lamp is bright when sound passes in, is unfavorable for practicing thrift the electric energy.

Disclosure of Invention

The utility model is directed to the above problem, the utility model provides a sound control LAMP circuit, including first resistance R1, second resistance R2, third resistance R3, fourth resistance R4, fifth resistance R5, sixth resistance R6, seventh resistance R7, eighth resistance R8, ninth resistance R9, tenth resistance R10, photo resistance GLR, first electric capacity C1, second electric capacity C2, third electric capacity C3, first triode V1, second triode V2, third triode V3, fourth triode V4, first diode D1, second diode D2, third diode D3, fourth diode D4, fifth diode D5, silicon controlled rectifier V5, LAMP, microphone MIC;

the anode of the third capacitor C3 is connected to a tenth resistor R10, a ninth resistor R9, an eighth resistor R8, a photoresistor GLR, the anode of a fifth diode D5, a third resistor R3 and a fourth resistor R4; the negative electrode of the third capacitor C3 is respectively connected with one end of a microphone MIC, the emitter of the first triode V1, the sixth resistor R6, the emitter of the second triode V2, the fifth resistor R5, the emitter of the fourth triode V4, the negative electrode of the thyristor V5, the positive electrode of the second diode D2, and the positive electrode of the fourth diode D4, and is connected to the ground; the other end of the microphone MIC is respectively connected with a tenth resistor R10 and a first capacitor C1, and the other end of the first capacitor C1 is respectively connected with a ninth resistor R9 and a base electrode of a first triode V1; a collector of the first triode V1 is respectively connected with the seventh resistor R7 and the eighth resistor R8; the base electrode of the second triode V2 is respectively connected with the photoresistor GLR and the sixth resistor R6, and the collector electrode of the second triode V2 is respectively connected with the base electrodes of the seventh resistor R7 and the third triode V3; an emitter of the third triode V3 is connected with the fifth resistor R5, a collector of the third triode V3 is respectively connected with anodes of the fourth resistor R4 and the second capacitor C2, a cathode of the second capacitor C2 is respectively connected with bases of the second resistor R2 and the fourth triode V4, a collector of the fourth triode V4 is respectively connected with a control end of the first resistor R1 and the thyristor V5, an anode of the thyristor V5 is respectively connected with a cathode of the first resistor R1, the second resistor R2, the third resistor R3, the fifth diode D5, a cathode of the first diode D1 and a cathode of the third diode D3; one end of a 220V alternating current power supply is connected with an illuminating LAMP LAMP, and the other end of the 220V alternating current power supply is respectively connected with the anode of the first diode D1 and the cathode of the second diode D2; the anodes of the third diodes D3 are respectively connected to the cathode of the fourth diode D4 and the LAMP.

Furthermore, the second capacitor C2 and the third capacitor C3 are electrolytic capacitors.

Furthermore, the first transistor V1, the second transistor V2, the third transistor V3, and the fourth transistor V4 are all NPN transistors.

Furthermore, the first resistor R1 and the third resistor R3 are both 150 kilo-ohm resistors, and the second resistor R2 is a 680 kilo-ohm resistor.

Furthermore, the fourth resistor R4 and the tenth resistor R10 are both 10 kilo-ohm resistors, and the sixth resistor R6 is a 33 kilo-ohm resistor.

The utility model has the advantages that:

the sound control lamp circuit of the utility model lights the lighting lamp when sound waves are transmitted into the microphone; when the lamp is illuminated, the lamp is turned off, so that the lamp is convenient to use and beneficial to saving electric energy.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

Fig. 1 is a schematic diagram of an acoustic control lamp circuit according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, as shown in fig. 1, an acoustic control LAMP circuit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a photoresistor GLR, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first triode V1, a second triode V2, a third triode V3, a fourth triode V4, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a thyristor V5, a LAMP, a microphone MIC;

The second capacitor C2 and the third capacitor C3 are electrolytic capacitors.

The first triode V1, the second triode V2, the third triode V3 and the fourth triode V4 are all NPN type triodes.

The first resistor R1 and the third resistor R3 are both 150 kilo-ohm resistors, and the second resistor R2 is a 680 kilo-ohm resistor.

The fourth resistor R4 and the tenth resistor R10 are both 10 kilo-ohm resistors, and the sixth resistor R6 is a 33 kilo-ohm resistor.

The controllable silicon V5 is MCR 100-8.

The utility model discloses the theory of operation of circuit:

no external light source and no sound state:

because no light source exists, the photoresistor GLR is in a high-resistance state, and the second triode V2 is cut off. The first transistor V1 operates in critical saturation with its collector at low level, which turns off the third transistor V3. The second capacitor C2 is charged to 13V, the fourth triode V4 is in a saturation state, the current in the first resistor R1 is completely turned off through the fourth triode V4 and the G pole of the controlled silicon V5 without control current, and the LAMP LAMP is turned off.

Without external light source and with silent state:

the negative half cycle of the sound wave turns off the first triode V1, since the seventh resistor R7 and the eighth resistor R8 provide enough base current for the V3, the third triode V3 is saturated, the collector voltage of the third triode V3 jumps, the second capacitor C2 is charged to 13V before, and the terminal voltage cannot jump suddenly, therefore, the base voltage of the fourth triode V4 also jumps (becomes negative), the fourth triode V4 is turned off, the current in the first resistor R1 all flows through the control electrode of the thyristor V5 to the cathode, the thyristor V5 is triggered to be turned on, and the LAMP is turned on.

When the thyristor V5 is turned on, the voltage (Vet) previously charged by the first capacitor C1 is quickly discharged to approximately 0V through the fifth diode D5 and the thyristor V5. And the second capacitor C2 is discharged, in the charging process, the absolute value of the voltage at the end of the second capacitor C2 is reduced from the initial value Vcc, the absolute value of the negative voltage at the base electrode of the fourth triode V4 is reduced to 0, then under the action of the voltage drop Vtm =0.8V of the conduction tube of the controllable silicon V5, the base electrode of the fourth triode V4 is gradually increased to +0.63V to be conducted, the control electrode current of the controllable silicon V5 is short-circuited by the fourth triode V4, and the controllable silicon V5 is cut off again. Therefore, the process of the second capacitor C2 from minus 13 volts to 0.63 volts is the lighting time. Obviously, the thyristor V5 is turned on, the tube voltage Vtm, the values of the second resistor R2, the second capacitor C2, and the fourth resistor R4 determine the lighting period.

When an external light source irradiates the photoresistor GLR, the resistance value of the photoresistor GLR is in a low-resistance state, and the illuminating LAMP LAMP is turned off.

In order to ensure the microphone amplifier to have enough amplification capacity, the beta value of the first triode V1 cannot be smaller than 250, and the third resistor R3 and the ninth resistor R9 are adjusted to enable the Vcc value to be about 12V-15V; and at the same time, the first transistor V1 is in critical saturation. The change process of the base and emission voltages of the fourth triode V4 in the process that the second capacitor C2 is changed from (-Vcc) to +0.63V is as follows:

when the third transistor V3 is just saturated, as mentioned above, the voltage at the terminal of the second capacitor C2 is Vcc = 12V-15V, and the voltage at the terminal of the first capacitor C1 has been discharged to 0V, then the base and radio voltages of the fourth transistor V4 are reverse bias voltages of 12V-15V, the emitter junction thereof is broken down, and the absolute value of the voltage at the terminal of the second capacitor C2 is quickly reduced to below 5V, then the emitter junction is cut off.

When Ube4 becomes 0.6V, the fourth triode V4 is turned on again, the controllable silicon V5 is turned off again, and the transition process of the lighting period is finished.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A sound control LAMP circuit is characterized by comprising a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a photoresistor GLR, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first triode V1, a second triode V2, a third triode V3, a fourth triode V4, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a silicon controlled rectifier V5, a LAMP LAMP and a microphone MIC;

2. The sound-controlled lamp circuit according to claim 1, wherein the second capacitor C2 and the third capacitor C3 are electrolytic capacitors.

3. The sound-controlled lamp circuit according to claim 1, wherein the first transistor V1, the second transistor V2, the third transistor V3 and the fourth transistor V4 are NPN transistors.

4. The sound-controlled lamp circuit according to claim 1, wherein the first resistor R1 and the third resistor R3 are both 150 kilo-ohm resistors, and the second resistor R2 is 680 kilo-ohm resistor.

5. The sound-controlled lamp circuit according to claim 1, wherein the fourth resistor R4 and the tenth resistor R10 are both 10 k Ω resistors, and the sixth resistor R6 is a 33 k Ω resistor.