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Index 106

Infrared automatic hand washing device 2

Published:2011/5/16 22:55:00 Author:Nicole | Keyword: hand washing device

The circuit work theory This infrared automatic hand washing device circuit is composed of power supply, infrared transmitting circuit, infrared receiving amplifier circuit and delay control circuit, the circuit is shown in the figure 9-120. The power supply circuit is made of power transformer T, bridge rectifier UR, filter capacitor C4, current limiting resistor R7, power indication LED VL2 and three terminal regulator integrated circuit IC4. The infrared transmitting circuit is made of infrared transmitting integrated circuit IC1, resistors R1-R3, capacitor C1, transistor V1 and infrared LED VL1. The infrared receiving amplifier circuit consists of integrative infrared receiving integrated circuit IC2, resistors R4, R5 and transistor V2. (View)

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Infrared automatic hand washing device 3

Published:2011/5/16 22:47:00 Author:Nicole | Keyword: hand washing device

The circuit work theory This infrared automatic hand washing device circuit is composed of power supply, infrared transmitting circuit, infrared receiving circuit and control circuit, the circuit is shown in the figure 9-121. The power supply circuit is made of fuse FU, power transformer T, bridge rectifier UR, filter capacitors C1, C2 and three terminal regulator integrated circuit IC1. The infrared transmitting circuit is made of time base integrated circuit IC2, potentiometer RP, resistors R1, R2, capacitors C3, C4 and infrared LED VL. The infrared receiving circuit consists of infrared light-sensitive transistor VD1, resistors R3, R4, capacitors C5-C7 and infrared receiving integrated circuit IC3. (View)

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Infrared automatic hand washing device 4

Published:2011/5/16 22:34:00 Author:Nicole | Keyword: hand washing device

The circuit work theory This infrared automatic hand washing device circuit is composed of power supply, infrared transmitting circuit, infrared receiving amplifier circuit and decoding control circuit, the circuit is shown in the figure 9-122. The power supply circuit is made of capacitors C1, C2, resistor R1, voltage stabilizing diode VS and rectifier diode VD. The infrared transmitting circuit is made of resistors R2, R7, infrared LED VL, transistor V1 and IC2's 5-foot internal circuit. The infrared receiving amplifier circuit consists of resistors R3-R6, capacitors C3-C5, infrared light-sensitive transistor V2 and operational amplifier integrated circuit IC1. (View)

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Infrared automatic hand washing device 5

Published:2011/5/16 22:16:00 Author:Nicole | Keyword: hand washing device

The circuit work theory This infrared automatic hand washing device circuit is composed of power supply, infrared transmitting circuit, infrared receiving process circuit and control implement circuit, the circuit is shown in the figure 9-123. The power supply circuit is made of power switch S, fuse FU, power transformer T, bridge rectifier UR, capacitors C1, C2 and three terminal regulator integrated circuit IC1. The infrared transmitting circuit consists of not gate integrated circuit IC3(Dl、D2), resistors R1-R4, capacitor C3, transistor V1 and infrared LED VL. The infrared receiving process circuit is composed of infrared photosensitive diode VD2, resistors R7, R8, potentiometer RP, capacitors C4-C7 and infrared process integrated circuit IC2. The control implement circuit is made of resistors R5, R6, diode VD1, transistor V2, solid state relay KN and electromagnetism water valve YV. (View)

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Infrared automatic hand washing device 1

Published:2011/5/17 0:59:00 Author:Nicole | Keyword: hand washing device

The circuit work theory This infrared automatic hand washing device circuit is composed of power supply, infrared detection control circuit and control implement circuit, the circuit is shown in the figure 9-119. The power supply circuit is made of capacitor C1, C2, resistor R1, voltage stabilizing diode VS and rectifier diode VD. The infrared detection control circuit consists of resistors R2-R7, capacitors C3-C5, diode VD2, transistors V1, V2, pyroelectric infrared sensor integrated circuit IC1 and time base integrated circuit IC2. The control implement circuit is composed of optical coupler VLC and electromagnetic valve YV. (View)

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Lavatory automatic flusher 1

Published:2011/5/17 1:14:00 Author:Nicole | Keyword: Lavatory, flusher

Lavatory automatic flusher 1
The circuit work theory This lavatory automatic flusher circuit is composed of power supply circuit, infrared transmitting circuit, infrared receiving circuit, decoder circuit, delay control circuit, LED indication circuit and control implement circuit, the circuit is shown in the figure 9-129. The power supply circuit is made of fuse FU, capacitors C1, C2, resistor R1, voltage stabilizing diode VS and rectifier diode VD. The infrared transmitting circuit consists of time base integrated circuit IC1, resistors R2, R3, potentiometer RP1, capacitor C3 and infrared LED VL1. (View)

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Lavatory automatic flusher 2

Published:2011/5/17 1:24:00 Author:Nicole | Keyword: Lavatory, flusher

Lavatory automatic flusher 2
The circuit work theory This lavatory automatic flusher circuit is composed of power supply circuit, infrared sensor signal amplifier circuit, delay amplifier circuit, trigger control circuit and control implement circuit, the circuit is shown in the figure 9-130. The power supply circuit is made of capacitors C1-C6, resistors R1, R2, diode VD1, three terminal regulator integrated circuit IC1 and voltage stabilizing diode VS. The infrared sensor signal amplifier circuit consists of pyroelectric infrared sensor integrated circuit IC2, operational amplifier integrated circuit IC3(Nl-N4)internal N1, N2, resistors R3-RlO and capacitors C7-C12. (View)

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Lavatory automatic flusher 3

Published:2011/5/17 1:33:00 Author:Nicole | Keyword: Lavatory, flusher

Lavatory automatic flusher 3
The circuit work theory This lavatory automatic flusher circuit is composed of power supply circuit, infrared transmitting circuit, infrared receiving process circuit, delay amplifier circuit and control implement circuit, the circuit is shown in the figure 9-131. The power supply circuit is made of power switch S1, power transformer T, bridge rectifier UR, filter capacitors C2, Cll、Cl2, resistors R4, R13, R14, voltage stabilizing diodes VS1, VS2 and power indication LED VL2. The infrared transmitting circuit consists of infrared LED VL1, resistors R1-R3, potentiometer RP1, capacitor C1 and time base integrated circuit IC1. IC1 and R1-R3 form multivibrator. (View)