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Infrared remote control music outlet circuit 3

Published:2011/9/27 1:47:00 Author:Rebekka | Keyword: Infrared remote control, music outlet

Infrared remote control music outlet circuit 3

Infrared transmitter circuit. Infrared receiver and control circuit. It includes the infrared remote control transmitter and infrared receiver, decoder, relay control circuits and music circuit. Infrared pulse transmitter circuit is composed of 25kHz pulse oscillation circuit and the infrared transmitter driver circuit. The 25kHz pulse oscillator is composed of R1, R2 and F1, F2 which are inside of six NAND gate. (View)

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Multi-function infrared counter

Published:2011/9/27 1:45:00 Author:Rebekka | Keyword: Multi-function infrared counter

Multi-function infrared counter
(a) a LM555 circuit diagram composedof the multi-vibrator, and it is usedas the infrared emission control drive pulse generator. (b) is the infrared receiver that has an infrared receiving tube (PH302) and the two amplifiers. (c) is the counter. This circuit uses the product four-digit universal counter. (View)

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Infrared heat release probe automatic controller circuit diagram

Published:2011/9/27 1:43:00 Author:Rebekka | Keyword: Infrared heat release probe, automatic controller

Infrared heat release probe automatic controller circuit diagram
The controller is used for the fan as automatic controlling. The role is to make the air flow, then the body's sweat is evaporate quickly and absorbs body heat to make people feel cool. In fact, people's feeling is not only determined by the temperature, when air is relative humidity, although temperature is not too high, people will still feel hot, so the relative humidity can not be ignored. In addition, the controller shown as the chart considers the temperature, but also it takes into account the relative humidity. When the relative humidity is below 70%, the temperature is above 30 ℃ and in the control range, the fan will start automatically. (View)

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Single-button dual-channel infrared remote control circuit diagram

Published:2011/9/27 1:38:00 Author:Rebekka | Keyword: Single-button dual-channel, infrared remote control

Single-button dual-channel infrared remote control circuit diagram

The circuit consists of a single button infrared transmitter, infrared receiver, channel decoding circuit and control circuit. Among them, single-button infrared transmitter is controlled by a four - two input NAND gate 74HC00 composition. The circuit is shown as below: Infrared receiver and channel decoding circuit are constituted by the PH302 and CX20106. PH302 is the infrared receiver; CX20106 is a signal processing circuit. Two-channel switch control circuit is composed of bistable electronic switch. short-pulse control of the switching circuit is composedofanalog switch S2, F3 gate and RC components. The S4, F6 and its surrounding components form the long-pulse control switch circuit. (View)

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Single infrared light-emitting diode driver circuit diagram

Published:2011/9/27 2:14:00 Author:Rebekka | Keyword: Single, infrared light-emitting diode , driver

Single infrared light-emitting diode driver circuit diagram
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DTMF code FM radio transmission circuit diagram

Published:2011/9/27 2:13:00 Author:Rebekka | Keyword: DTMF code , FM radio transmission

DTMF code FM radio transmission circuit diagram
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DTMF Multi-channel code, decoding infrared remote control circuit

Published:2011/9/27 2:11:00 Author:Rebekka | Keyword: DTMF , Multi-channel code, decoding , infrared remote control

DTMF Multi-channel code, decoding infrared remote control circuit
Figure (a) is the infrared emission circuit that composed of 12 the keyboard and S2559. Figure (b)shows DTMF decoder circuit and channel control circuit composedof the MT8870. Figure (c) is the voltage amplifier circuit composed of two-op ampLM358. (View)