This circuit is suggested by National Semiconductor in its Linear Applications Handbook. The LM3909 integrated circuit consists of a very low consumption oscillator with a power supply of 1.2 V.
This low voltage AC control uses a triac. Any TIC series triac can be used and this device must be...
This circuit was found in a 1987 magazine. It measures the pulse rate produced by a cardiac...
The field effect transistors have characteristics that allow the realization of excellent...