Talk:Power semiconductor device

This article is in considerable need of expansion if it is to reflect the current state of the power semiconductor industry, the latest advances in technology and applications and its world-wide business market. DFH 15:33:19, 2005-09-10 (UTC)

Parameters of power semiconductor devices
The parameters named in this section are indeed power semicoductor's parameters, but the On-resistance is only accurately defined for MOSFET transistor. BJT as well as IGBT have a non-resistive behaviour, beacuse a voltage drop independent of the flowing current is always present. Thus i suggest to change the "on-resistance" parameter for a "voltage drop" kind parameter --Iruando (talk) 00:01, 21 February 2008 (UTC)

Germanium diode
I know (but have no immediate reference) that germanium diodes were in use in the late 1940s; I had a 1948 CZ 125cc motorcycle with a germanium rectifier. LorenzoB (talk) 06:39, 8 June 2011 (UTC)

Germanium diodes are still made (such as 1N34) and used, as they have a lower forward voltage drop amongst several benefits (http://www.americanmicrosemi.com/information/tutorial/index.php?t_id=7). This makes them useful for radios and test equipment for example. Silicon diodes are typically better at handling power, but have a higher forward voltage drop of typically 0V7 instead of Germaniums 0V3. — Preceding unsigned comment added by 173.68.95.175 (talk) 23:22, 25 February 2015 (UTC)

Misleading first paragraph?
I believe the first paragraph is misleading to say most power semis are switches or rectifiers. Power transistors or ICs are used extensively in all but the smallest amplifiers for example and they are linear (analogue), not digital. — Preceding unsigned comment added by 173.68.95.175 (talk) 23:16, 25 February 2015 (UTC)

Power MOSFET entry in table:
I believe the statement "As frequencies increase the losses increase as well, making BJTs more attractive" is misleading; my understanding is that BJTs tend to have higher switching losses than MOSFETs at high frequencies, because they are slow to switch off. I would suggest deleting this sentence.81.145.137.170 (talk) 12:57, 2 January 2018 (UTC)

Why are there no device schematic symbols?
As an electrical engineer, we use schematic symbols for all documents and circuit drawings, the omission of these symbols does a huge disservice to those learning electronics and electrical circuits.

192.174.37.51 (talk) 17:23, 19 November 2020 (UTC) Bill, PE Electrical Power
 * Because this isn't a drafters' manual? Schematic symbols have very restricted utility in a general coverage article. Somewhere we've got a list of schematic symbols, with the obligatory ceaseless wrangling over IEC and ANSI variants. --Wtshymanski (talk) 06:23, 20 November 2020 (UTC)