Search Simple Circuit Diagram Articles
-
Recent Atticles
General Infrared Remote Controlled Relay

This relay circuit is controlled by almost any type of infrared remote controller. This circuit works on assumption that almost all remote controller use high frequency modulated infrared light. By filtering out un-modulated or low frequency modulated signal, this circuit … Continue reading
Simple IR Remote Tester

The most common problem for infra-red (IR) remote control is the failure to transmit the pulsed infra-red light. The circuit shown in the schematic diagram below is an IR remote control handset tester. This device is very useful and easy … Continue reading
Posted in Lighting and LED Circuit, Test and Measurement
Tagged Infrared, LED Circuit, Remote Control
Comments Off
Frequency Modulated Oscillator (for FM Transmitter)

An oscillator can be built using LC (inductor-capacitor) tank circuit. When we vary the capacity of the capacitor in LC tank circuit then the frequency of the oscillator will vary according to capacitance change. The idea of this modulator is … Continue reading
