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Remote Control Circuit

Index 18

diode protection circuit

Published:2011/7/6 7:38:00 Author:chopper | Keyword: diode, protection circuit

The protection circuit which utilizes commutation of diode and the characteristic of low forward-direction voltage drop is shown as picture a,b.Just as picture(a),VD1 will be conductive when output voltage is higher than input voltage;and when output voltage is less than input voltage,VD2 will be conductive in order to protect the power supply.VD2 adopts the Schottky diode whose forward-direction voltage drop is low.Picture(b) is a diode protection circuit in series.When output voltage is higher than power supply,VD1 will stop to protect the power suply.When the circuit is in normal operation,there is 0.6V forward voltage drop on VD1,and it will decrease the output voltage.Therefor,we can use output voltage of VD3 to compensate. (View)

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Electric single-girder crane radio remote controller TX315B1

Published:2011/6/14 2:53:00 Author:TaoXi | Keyword: Electric, single-girder crane, radio remote controller

The right part of the dotted line is the original operating circuit of the crane, K1～K4 are the original manual operating buttons, now you can use the relay's contact point to replace it, SQ is the limit ascending switch. KM1～KM4 are the communication relays, and they can be used to control the ascending motor M1 and the traveling motor M2's reversal and positive-turning to realize the gourd walking and the goods lifting. The left part of the dotted line is the new wireless remote control circuit. In the circuit, the four output port A～D of the TX315B1 receiving circuit can drive the DC relays K1 ~ K4 through the drive tube VT ~ VT4. (View)

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Wireless remote control/touch dimmer circuit RCM1A/RCM1B

Published:2011/6/14 2:55:00 Author:TaoXi | Keyword: Wireless remote control, touch dimmer circuit

The wireless remote control/touch dimmer circuit is designed as one kind of incandescent lamp dimmer switch that is composed of the radio remote control components RCM1A／RCM1B and the CS7232 touch dimmer integrated circuit, and it can be used to control the pendant lamp, table lamp and wall lamp.etc, also it has the features of exquisite size, easy to use and good stability and reliability. CS7232 is designed as one kind of CMOS type integrated circuit that can be used in the incandescent light control, it controls the lamp brightness through controlling the bidirectional thyristor conduction angles, and it has the features of low power consumption, multi-function and high control sensitivity, and it can be used in the incandescent lamp circuit which supplies power to the AC 220/115V, 50/60Hz power supply. The CS7232 is in the DIP 8 pins plastic package, the pin functions and the internal circuit block diagram is as shown: (View)

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