Talk:Charge pump

message: The article only mentions DC/DC conversion as an application for a CP. A different kind of CP is an important part of for example a PLL.
I came to this page looking for discussion of CP's for DC/DC conversion, so I would rather see it expounded on than merged with something else.
: Your message does not have a signature or a date so it's unclear how old your comment is. Also, it's unclear what you want to see since a section that mentions charge pumps in PLLs is part of the article. I'm not sure what you mean to say with "expounded" and "merged with something else"
: ICE77 (talk) 15:44, 19 August 2015 (UTC)
thread_title:  Charge pumps in PLLs 

message: I am going to recommend that the external links be flagged as Commercial Content, since all of them point to a single commercial site; possibly the article was prepared by an employee of Maxim Integrated Products, Inc., or by one singularly unimaginitive engineer or hobbyist. —The preceding unsigned comment was added by Seattlecrow (talk • contribs).
kal aho  — Preceding unsigned comment added by 115.114.107.35 (talk) 10:11, 6 January 2012 (UTC)
thread_title:  External links 

message: I'm fairly sure neon signs don't use charge pumps, but rather switch-mode power supplies.  I have removed the statement as unreferenced.  If anyone has a reference to such please link it. Evand 23:54, 28 May 2007 (UTC)
replies: text: Are not charge pumps a form of switch-mode power supply?  I would think articles on switch-mode power supplies and DC-DC power conversion should link here. But I am not an expert in this field. --Treekids (talk) 19:40, 11 December 2007 (UTC)
replies: text:  Yes, charge pumps are one kind of switch-mode power supply. However, a neon sign uses a neon sign transformer (which is technically not a switch-mode power supply) or a boost converter, a different kind of switch-mode power supply. I suppose it's possible to make a neon sign run from something like a charge pump, but at the high voltages necessary, most people would call it a voltage multiplier rather than a charge pump. --68.0.124.33 (talk) 02:45, 13 April 2009 (UTC)
thread_title:  Neon signs 

message: We need a sample circuit here, and perhaps some scope traces.  At the moment this article is very abstract and hard for a newbie to comprehend.  We need something that builds a picture in the mind. --Treekids (talk) 19:40, 11 December 2007 (UTC)
thread_title:  Need a picture 

message: For the MOSFET charge pump schematic, it's in electronic reality the same as the first diagram. Connect gate to drain for a MOSFET or a base to collector in a bipolar transistor, you turn it into a diode. Just a bit of trivia, in a way, but hopefully educational to those unfamiliar with electronics. Years ago, we called these voltage multipliers. In television sets of CRT type, they were referred to as triplers (due to the tripling of voltage, due to the lower number of diode utilized due to technological constraints of the time). Further notable was the increase of voltage results in lower current being available, but the same (ignoring losses) power in wattage being available.Wzrd1 (talk) 10:07, 10 December 2014 (UTC)
thread_title:  A bit of trivia that gave me a chuckle on the schematics 

message: 1. The article says "A charge pump is a kind of DC to DC converter ". Then it says "Another way to explain the operation of a charge pump is to consider it as the combination of a DC to AC converter (the switches) followed by a voltage multiplier."
The descriptions are inconsistent. The first sentence implies a DC voltage level shift. The second introduces the notion of DC-to-AC conversion followed by a voltage multiplier. Assuming that DC-to-DC conversion in the first statement refers to DC current or voltage conversion, the last part of the statement seems to refer to a DC-to-DC shift which in the end is what the first sentence says. The two sentences are contradictory and need to be revised.
2. "A charge pump providing a negative voltage spike has been used in NES-compatible games not licensed by Nintendo in order to stun the Nintendo Entertainment System lockout chip."
What does "stunning" the NES means? Is it some kind of jargon? This needs clarification.
3. This entry states "Charge pumps can double voltages, triple voltages, halve voltages, invert voltages, fractionally multiply or scale voltages". If that is the case then it's clear the input is DC voltage and the output is DC voltage. Basically it is like saying that charge pumps are similar to voltage multipliers. Yet, voltage multiplies have AC input and DC output. Charge pumps have DC input and DC output. Is that the main/subtle difference?
ICE77 (talk) 16:18, 19 August 2015 (UTC)
replies: text: I agree with the criticisms above,  I think this article has too limited a definition; it is not necessarily a DC-to-DC converter.  "Charge pump" refers to just the voltage multiplier and does not include the oscillator.   For example, the term "charge pump" is also used in smart card and RFID design for a diode capacitor multiplier that generates the higher DC voltage needed to power the chip from the low RF (AC) voltage from the antenna: , . Looking at all electrical usage of the term, , , , , , it is clear that the term "charge pump" refers to a diode-capacitor ladder network that uses an AC or pulsed current to generate a higher (or possibly lower) DC voltage by charging capacitors in series while discharging them in parallel, thus "pumping" charge in one direction, of which the Greinacher/Cockcroft–Walton circuit was the earliest example: ,  --ChetvornoTALK 03:37, 20 August 2015 (UTC)
replies: text:  The issue is not with this article, but perhaps the ridiculously ambiguous words themselves 'charge pump', and the way it has broadened to something that nobody can really place a finger on in terms of what it is supposed to be. But at least the article provides some kind of start and also provides information about where these words pop up in various electronic and physics work, and also indicates that the definition has gray areas. KorgBoy (talk) 20:40, 21 March 2019 (UTC)
thread_title:  Comments and questions 

message: The permanently broken external link (http://www.linear.com/products/inductorless_(charge_pump)_dc%7Cdc_converters) is broken because Analog Devices acquired Linear Technology (see reference http://investor.analog.com/releasedetail.cfm?releaseid=1016957) and the content from Linear's website was integrated into Analog Devices website, but the individual URLs do not redirect to the correct location.  The closest match to the original URL that I can find on the Analog Devices website is http://www.analog.com/en/products/power-management/inductorless-charge-pump-dc-dc-converters.html - consider updating the link if appropriate. Pcsanza (talk) 14:59, 18 May 2018 (UTC)
thread_title:  External Links