简单的直流电机PWM调速电路 Simple DC motor PWM speed controlThe 555 is ubiquitous and can be used as simple PWM speed controlCircuit Explaination: The 555 Ic is wired as an astable and the frequency i
脉宽调制直流电动机控制电路 Pulse Width Modulation DC Motor ControlOften, people attempt to control DC motors with a variable resistor or variable resistor connected to a transistor. While the latter a
This set of two circuits from the basis for a very simple light wave transmitter. A LASER beam is modulated and then aimed at a receiver that demodulates the signal and then presents the information (
红外线远程控制电路 Infa-Red Remote ControlI have received a number of emails requesting schematics for infa-red remotes. So here is one. This remote transmits a tone using an infa-red LED. This tone i
可控硅调光灯电路-TRIAC Light Dimmer This little circuit can be used to dim lights up to about 350 watts. It uses a simple, standard TRIAC circuit that, in my expirience, generates very little heat. Pl
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