More about transmitter (55)

24-06-2013 | This project is a wireless power transmitter, compliant with the WPC consortium's Qi specification for managed wireless power transfer. ...

1-10-2011 | For a number of years now, remote radio control systems for models that operate in the 2.4 GHz band have been available. This technology is...

1-07-2010 | Here are two circuits that make it possible to add up to eight detectors to an existing alarm system without running a single cable. Each tr...

1-04-2010 | In the early 1990s, activity in the 23 cm amateur radio band (1250-1300 MHz) soared due to the arrival on the market of wideband RF power am...

1-01-2005 | Model aircraft sometimes have the unpleasant property of choosing their own landing field, and doing so in terrain where they are hard to se...

1-12-2004 | IR (infra-red) transmitters containing the encoder-IC HT12E from Holtek have been published in Elektor Electronics on previous occasions. Th...

1-02-2002 | The circuit of the IR transceiver was introduced in the previous issue, along with sample applications for use as an RC5 receiver for the PC...

1-07-2000 | This circuit restores the original modulation of the signal received from the remote-control unit, which was demodulated by the receiver uni...

1-12-1998 | The familiar Type 555 can be used to switch currents up to 200 mA. Less well-known is its use as a latch with control input. When the in...

1-07-1998 | This little circuit will be valued highly whenever a signal is required for the testing of infrared receivers. In most cases, such a tes...