Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
To minimize solenoid power, a full voltage initial pulse can be applied until the solenoid pulls in, then a lower voltage applied to maintain the position. This can be done by switching in a series resistor, but that wastes power. A more efficient way is to use PWM to generate the lower...
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