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IR REMOTE SWITCH

Imagine the convenience of selecting TV channels using your remote and then pointing the same remote to your switchboard to switch on/off the fan...

FASTEST FINGER FIRST INDICATOR

Quiz-type game shows are increasingly becoming popular on television these days. In such games, fastest finger first indicators (FFFIs) are used to test the...

REMOTE-CONTROLLED POWER- OFF SWITCH

Remote controllers for various audio/ video systems are usually provided with a power ‘on’/‘off’ or standby-mode selector button. But turning the system off from...

TELEPHONE LINE BASED AUDIO MUTING AND LIGHT-ON CIRCUIT

Very often when enjoying music or watching TV at high audio level, we may not be able to hear a telephone ring and thus...

DIGITAL MAINS VOLTAGE INDICATOR

Continuous monitoring of the mains voltage is required in many applications such as manual voltage stabilisers and motor pumps. An analogue voltmeter, though cheap,...

ULTRA LOW DROP LINEAR REGULATOR

The circuit is a MOSFET based linear voltage regulator with a voltage drop of as low as 60 mV at 1 ampere. Drop of...