Transistor Relay driver circuit in digital

increase current gain of transistor relay driver

How to control a load with a digital circuit like Arduino? A transistor relay circuit may be answered for you. The output pulse from the digital circuit to biased the transistor is ON. Then, it drives the relay as a switch ON-OFF. To power to any circuits or external devices. Basic Application Relay The Controlling … Read more

Digital volume control circuit schematic

digital volume control circuit

This is a digital volume control circuit that Can be applied to the normal volume of a power amplifier. When press switch S1 adds up the volume and press switch S2 to reduce the volume down. There are three circuit ideas for you. 555 Digital volume control IC1 is a 555 CMOS Timer Single IC … Read more