Talk:Clamper

ambiguity
"a different dc level" is a very ambiguous statement, at least I don't understand it. Fresheneesz 21:29, 2 February 2006 (UTC)

correction - i do understand it, but don't know how to reword that. Fresheneesz 08:12, 8 February 2006 (UTC)


 * You mean its not very clear to you--Light current 01:30, 7 March 2006 (UTC)

Clipper?
"A different arrangement restricts the input waveform from going beyond a certain voltage."

Would this different arrangment happen to be a clipper rather than a clamper? Fresheneesz 08:12, 8 February 2006 (UTC)


 * I've seen the term "clamper" used for either circuit. - mako 08:25, 8 February 2006 (UTC)

So should that sentence include "This may also be known as a clipper. " ?? Fresheneesz 20:26, 8 February 2006 (UTC)


 * Maybe merge clipper here. - mako 20:40, 8 February 2006 (UTC)


 * The term 'clamping' implies to me that protection of succeeding circuitry is the prime purpose. Although the term 'black level clamp' was in use on earlier analog TVs to get a defined video dc level for the 'black' signal. In this case it probably would have had a level shift- but Id have to look it up to be sure.
 * The term 'clipping', OTOH implies, to me, chopping off part of a (generally) low power signal. For instance protection diodes across the i/ps of an op amp I would call clampers. Clipping is what happens in an audio power (or any other sort of) amp when overdriven. Clamping on its own does not(without the addition of a dc block or level shift change the dc baseline value of the signal). The difference is subtle, but perhaps the 2 pages could be merged, and the differences explained.--Light current 23:17, 6 March 2006 (UTC)


 * In Horowitz and Hill, a diode clamp is described thus:

'Sometimes it is desirable to limit the range of a signal (ie prevent it from exceeding certain voltage limits) somewhere in a circuit. The cct shown will accomplish this (cct showing series resistor and shunt diode with cathode connected to +5v).''
 * Later in the chapter the following:

One interesting clamp application is 'dc restoration' of a signal that has been ac coupled.. THe fig shows the idea( cct showing series capacitor, then shunt diode with anode to ground.''


 * The term clipping is not mentioned in this chapter on Diode circuits.--Light current 02:14, 7 March 2006 (UTC)