-15v Inverting Switching Regulator
-15v Inverting Switching Regulator
(OP)
HI,
Does anyone has any reference to workable VIN =15v ,VOUT=-15,
1>Amp>2 inverting switching regulator design?
Does anyone has any reference to workable VIN =15v ,VOUT=-15,
1>Amp>2 inverting switching regulator design?





RE: -15v Inverting Switching Regulator
Keith Cress
kcress - http://www.flaminsystems.com
RE: -15v Inverting Switching Regulator
The WEB BENCH only support for positive range of output.
I have found out ONSEMI has circuit calculation spread sheet for NCP3163 but I wish to find a used design for safe application.
RE: -15v Inverting Switching Regulator
How about?
http:
Keith Cress
kcress - http://www.flaminsystems.com
RE: -15v Inverting Switching Regulator
RE: -15v Inverting Switching Regulator
Thanks for your reply.
The web bench able to work for negative range.... I wonder why i can't get that result previously. May be i keyed in some wrong parameter.
HI VE1BLL,
I will look into it. THank you.
RE: -15v Inverting Switching Regulator
I've been using the UC2572 for 5 years and swear by it. It is offered in 8-pin SOIC and DIP, uses direct duty cycle voltage mode control, features pulse by pulse current limit, and has a built in p-channel MOSFET gate driver. The p-FET gate driver is unclamped, so if the input is less than 20V, all is well. Just be sure to use a p-FET with a gate-source rating of 20V. The p-FET should be rated for at least 40V drain to source, as well as the Schottky diode. BR.
Claude
RE: -15v Inverting Switching Regulator
I have read through the datasheet and app.note for the U2572 but i can't find a complete component selection guide.
Do you have a better design guide for U2572?
RE: -15v Inverting Switching Regulator
RE: -15v Inverting Switching Regulator
Good luck!
RE: -15v Inverting Switching Regulator
http:/
I've had good luck with the 3704 in several designs. The examples are enough to go on assuming you have basic ps design knowledge.
dan