No, that's not really the main difference between them and conventional bipolar transisitors, the main difference with MOSFETS or FETS in general is that voltage changes on the input essentially control current changes on the output, similar to the way vacuum tubes operate (transconductance devices), whereas bipolar transistors use current changes on the input to control current changes on the output (current amplifying devices). jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tim Øsleby Sent: Tuesday, January 02, 2007 3:21 PM To: 'Pentax-Discuss Mail List' Subject: RE: OT: Occupations? Also used in audio systems. my little understanding is that the advantage using them is that they are more efficient than other transistors, in other word more power, less spill heat. Tim Mostly harmless (just plain Norwegian) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mat Maessen Sent: 2. januar 2007 18:00 To: Pentax-Discuss Mail List Subject: Re: OT: Occupations? On 1/2/07, Shel Belinkoff <[EMAIL PROTECTED]> wrote: > What's a MOSFET? A type of transistor. Notably used in the amplifier stages in digital cameras, between the CCD sites and the analog to digital converters. Changing the bias level of a MOSFET is a common way to change the gain of the device, which would effect a change in the ISO sensitivity of the camera. I could get more technical... :-) -Mat -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
