switching regulator ics - Electronic Circuits Projects Diagrams Free

manjiri · 28th December 2003, 04:27 AM

http://<br /> switching regulator i...<br /> <br />

**kinjalgp** · 28th December 2003, 11:56 AM

What are your voltage and current requirements?

Russlk · 28th December 2003, 11:59 PM

What do you lmean by over temperature? Ambient temperature or internal heating? What do you want to happen in case of over temperature?

**kinjalgp** · 29th December 2003, 04:25 AM

She is talking about internal thermal shutdown.

Ravi · 30th December 2003, 10:52 AM

If you are looking for an IC which can be used for step up or step down supplies, I would suggest 78S40 from National Semiconductor. This can operate in the range 2.5 to 40V with a current capability of 1.5A. This could also be used in conjunction with discrete high voltage power transistors to extend both the voltage and current capabilities.

Another one is L296 SGS-Thomson switching regulator. This is a 4A device whose output voltage can be in the range of 5.1 to 40V.

Motorola also has a over voltage protection chip which could be used with a thyristor to have a 'crowbar' action.

Hope this will help.

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28th December 2003, 04:27 AM	(permalink)
manjiri	switching regulator ics http://<br /> switching regulator i...<br /> <br /> __________________ manjiri j hardikar

28th December 2003, 11:56 AM	(permalink)
kinjalgp	What are your voltage and current requirements? __________________ "There is no way to peace, peace is the way!"

28th December 2003, 11:59 PM	(permalink)
Russlk	What do you lmean by over temperature? Ambient temperature or internal heating? What do you want to happen in case of over temperature? __________________ see my website: www.geocities.com/russlk

29th December 2003, 04:25 AM	(permalink)
kinjalgp	She is talking about internal thermal shutdown. __________________ "There is no way to peace, peace is the way!"

30th December 2003, 10:52 AM	(permalink)
Ravi	If you are looking for an IC which can be used for step up or step down supplies, I would suggest 78S40 from National Semiconductor. This can operate in the range 2.5 to 40V with a current capability of 1.5A. This could also be used in conjunction with discrete high voltage power transistors to extend both the voltage and current capabilities. Another one is L296 SGS-Thomson switching regulator. This is a 4A device whose output voltage can be in the range of 5.1 to 40V. Motorola also has a over voltage protection chip which could be used with a thyristor to have a 'crowbar' action. Hope this will help. __________________ \"Waste your money and you\'re only out of money,but waste your time and you\'re lost part of your life\"