Circuit Diagram

The infrared remote control music socket circuit (2) PH303A

Published:2011/8/1 22:07:00 Author:TaoXi | Keyword: Infrared remote control, music socket circuit

The PH303A×2 infrared pulse transmitter circuit is as shown, by adjusting the RP1 you can make the oscillation frequency to12kHz. Infrared remote control receiver circuit:   (View)

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The roll-pattern type wireless remote control circuits TH150/TH150A/TH150B

Published:2011/8/1 22:06:00 Author:TaoXi | Keyword: Roll-pattern, wireless remote control

The internal structure of the roll-pattern type wireless remote control circuit is very complex, the coding method is also very special, but the usage of this circuit is the same as the digital coding circuit, even more simple. The radio control circuit which is composed of the rolling code decoding circuits TH150/TH151A/TH151B. The radio transmission circuit(it is composed of the rolling code circuit, the TH150 and the transistor carrier frequency oscillator): The super-regenerative wireless remote control receiver circuit (which is composed of the TH151A/B rolling decoding circuit):   (View)

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The game infrared remote control circuit

Published:2011/8/1 22:06:00 Author:TaoXi | Keyword: Game, remote control circuit

Game infrared remote control circuit   (View)

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The single-channel wireless remote control switches TDC1808/TDC1809

Published:2011/8/1 22:06:00 Author:TaoXi | Keyword: Single-channel, wireless remote control switch

The transmitter of the three-way wireless remote control switch is as shown, the receiving circuit is the same to the single channel circuit.   (View)

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The key-buckle type wireless encoding remote controller circuit 1

Published:2011/8/1 22:10:00 Author:TaoXi | Keyword: Key-buckle type, wireless encoding, remote controller

Key-buckle type wireless encoding remote controller circuit 1   (View)

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The key-buckle type wireless encoding remote controller circuit (2)

Published:2011/8/1 22:10:00 Author:TaoXi | Keyword: Key-buckle type, wireless encoding, remote controller

Key-buckle type wireless encoding remote controller circuit 2   (View)

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Remote control infrared detection circuit

Published:2011/8/4 1:44:00 Author:TaoXi | Keyword: Remote control, infrared detection

Remote control infrared detection circuit The circuit in this figure can transport the signal of the detected target in long distance. The PC-1 is a pair of infrared diode and phototransistor. When the object obstructs the light of diode exposure to the photo-transistor, the photo-transistor will be in the cut-off state, and the signal is amplified and added to the load through the second pair of infrared diode and phototransistor. The second pair of infrared diode and phototransistor has the failure insurance effect.   (View)

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The transceiver module of the remote control toy car circuit composed of RCMlA/RCMlB

Published:2011/8/1 22:09:00 Author:TaoXi | Keyword: Transceiver module, remote control toy car

Transceiver module of the remote control toy car circuit composed of RCMlA/RCMlB   (View)

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The transceiver module composed of the item prevent-lost alarm RCMlA/RCMlB

Published:2011/8/1 22:09:00 Author:TaoXi | Keyword: Transceiver module, item prevent-lost alarm

The transmitter is composed of the RCM1A and the battery, the receiver is composed of the RCM1B receiving module with the double time-delay function, the high voltage generator and the alarm sound circuit.etc.   (View)

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The crane wireless remote control circuit SF05B/SJ05C

Published:2011/8/1 22:09:00 Author:TaoXi | Keyword: Crane, wireless remote control

Figure (a) is the radio transmission circuit: Figure (b) is the remote control receiving and control circuit:   (View)

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The heterodyne remote control receiving circuit TDA5200

Published:2011/8/1 22:08:00 Author:TaoXi | Keyword: Heterodyne, remote control, receiving circuit

The key components that will be used in this article: HCS515 TDA5200 The TDA5200 is designed as one kind of low power consumption monolithic ASK superheterodyne receiving circuit, The working frequency range is divided into two blocks: 868～870MHz and 433～435MHz. This circuit has the features of high integration, less peripheral components and perfect function, so it is the monolithic receiving circuit that has excellent performance.   (View)

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The fifteen-channel wireless anti-theft alarm system

Published:2011/8/1 22:08:00 Author:TaoXi | Keyword: Fifteen-channel, wireless, anti-theft alarm

(a) is the coding launch circuit. There is the digital coding circuit VD5026 in the FDD5 component, and you can preset the code. When you are using this circuit, you just need to connect the component's power, the launch component will automatically output signals. (b) is the remote control receiving decoder circuit. The JDD5 also has the decoding circuit VD5027.   (View)

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The twelve-channel wireless remote control circuit TH9738

Published:2011/8/1 22:08:00 Author:TaoXi | Keyword: Twelve-channel, wireless remote control

The key components datathat will be used in this artical: TH9738 CD4514 78L05 9014   (View)

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The pyroelectric infrared sensing socket analog sound circuit BISS0001

Published:2011/7/26 20:02:00 Author:TaoXi | Keyword: Pyroelectric, infrared sensing socket, analog sound

The circuit is as shown. It is composed of the pyroelectric infrared sensor, the infrared signal processing circuit, the relay control socket circuit, the analog sound circuit and the AC step-down rectifier circuit.etc. When someone walked into the pyroelectric infrared monitoring field, the socket gets the electricity, its electrical equipments start running; meanwhile, the analog sound circuit sends out the voice to remind the equipment master.   (View)

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The pyroelectric infrared sensing automatic door control and voice calling circuit HN911D

Published:2011/7/26 20:02:00 Author:TaoXi | Keyword: Pyroelectric, infrared sensing, automatic door control, voice calling

The circuit is as shown. It is composed of the pyroelectric infrared sensor module, the delay control network, the electric coupling & SCR control circuit, the language voice circuit, the AC step-down rectifier circuit.etc. The HN911D is one kind of pyroelectric infrared detector module.   (View)

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The four-channel remote receiver CS902

Published:2011/8/1 22:07:00 Author:TaoXi | Keyword: Four-channel, remote receiver

The key (View)

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The engine high temperature protector

Published:2011/8/3 22:16:00 Author:qqtang | Keyword: high temperature protector

Here is to introduce an engine high temperature protector which can cut of the igniting power supply when the water in the tank is hotter than 90℃, so the car is stalled and protected, and the dangers caused by high heat can be avoided. The principle of the circuitThe engine high temperature protector consists of the temperature control circuit and protection control circuit, see as figure 7-159. The temperature test controller circuit consists of the thermistor RT, potentiometer RP, resistor R1-R3, electric switch integrated circuit IC1 and heat alarm indicating LED VL.   (View)

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The automobile lighting lamp lifespan prolonging protector (2)

Published:2011/8/3 22:19:00 Author:qqtang | Keyword: lighting lamp, protector

Here is to introduce an automobile lighting lamp lifespan prolonging protector which works in the current limiting method, when the lamp power supply is connected the current limit resistor is also linked, so the pulse current is limited, after dozens of ms of delay, and then after the control, the circuit will make the current limit resistor short automatically, so the lighting lamp will work normally, by which the lifespan of the lamp can be prolonged. The principle of the circut The automobile lighting lamp bulb lifespan protector consists of the current test controller and control executing circuit, see as figure 7-158.   (View)

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The automobile lighting lamp lifespan prolonging protector (1)

Published:2011/8/3 22:21:00 Author:qqtang | Keyword: lighting lamp, protector

When the car or motorcycle lamp is impacted by the pulse current when it is in the cold state, it is easy to break. Here is to introduce the automobile lighting lamp lifespan prolonging protector which can pre-heat the bulb fuse and make the fuse current rise gradually from zero, so the bulb is prevented from being burned due to the impact current, so the lifespan of the bulb will be prolonged. The working principle of the circuit The automobile lighting lamp bulb lifespan protector consists of the resistor R, capacitor C, transistor V1 and V2, see as figure 7-157.   (View)

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The medical electric aspirator waterproof controller (2)

Published:2011/8/3 22:23:00 Author:qqtang | Keyword: aspirator, waterproof controller

Working principle of the circuitThis medical electric aspirator waterproof controller consists of the power supply circuit, liquid level detection control circuit and alarm circuit, see as figure 9-47. The power supply circuit consists of the switch S1, fusees FU1 and FU2, power supply transformer T, power supply indication LED VL1, rectifier bridge file UR, current limit resistor R1 and filter capacitor. The liquid level test controller circuit consists of the test electrode a and b, resistor R3, transistor V, diode VD, control key S2, stepper switch and relay K1 and K2.   (View)

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