More about oscillator (542)

1-07-2002 | This simple circuit will tell you, by sounding a buzzer and flashing a LED, that a telephone line is in use. If the telephone line is free,...

1-12-2001 | Thanks to their high light output and long lifetimes, a white LED is an excellent choice as a replacement for the incandescent bulb in a pen...

1-12-2001 | The schematics show two crystal oscillator circuits constructed using the high-speed LT1394 comparator from Linear Technology (www.linear-te...

1-11-2001 | A survey of these essential electronic systems, how they work, and how they are used. Practical component values are given for each oscillat...

1-09-2001 | This programmer is suitable for programming the three popular 20-pin Atmel processors, the 89C1051, 89C2051 and the new 89C4051 with 4 k of...

1-07-2001 | More and more communications systems are operating in the 2.4-GHz ISM (Industrial, Scientific and Medical) band, including Bluetooth, variou...

1-07-2001 | This 455-kHz quadrature detector for narrow-band FM signals boasts two important advantages: it is pleasantly simple and it does not require...

1-07-2001 | This simple and cheap circuit is not just for Christmas! There are just two resistors, a small-signal transistor such as a BC547, one ‘flash...

1-07-2001 | It frequently happens that you have an application in which you want to measure the temperature of a circuit or the outside world. This can...

1-07-2001 | This circuit has been designed to complement the ‘Simple IR Transmitter’ and to decode its transmitted signals. The similarity to the transm...