More about 555 (45)

1-07-2004 | You may not realise this, but the 555 timer IC has been in existence for over 30 years. The chip was originally manufactured by Signetics. I...

1-12-2003 | It is all too often necessary to augment the power supply of an existing electronic circuit because exactly the voltage that you need is mis...

1-12-2002 | The 555 timer chip is older than many Elektor readers and has been used in numerous configurations. The suggestion presented here has not be...

1-12-2000 | The 555 is a timer IC that has so many applications that it is not possible to name all of them. Here, a 555 forms the heart of a simple sig...

1-12-1999 | This article is of interest only to readers whose bicycle lights are powered by a dynamo. The laws on bicycle lights in the United Kingdom...

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...

1-12-1996 | Strictly speaking, the title 'current limiting' is not entirely right, since the circuit itself does not limit, but detects. When the cu...

1-12-1995 | The Type 555 chip must be one of the most popular ICs used in electronics. Here it is used as a vco (voltage controlled oscillator). The...

1-07-1992 | The perpetual difficulty in designing fast NiCd chargers is determining when the battery is charged, that is, when to stop charging.

1-03-1992 | Whilst developing a simple scanning receiver, a need occurred for a ramp generator to provide a varying voltage to apply to the varicap d...