micl23@inuxm.UUCP (W E Miller) (01/27/89)
I have a friend who is interested in designing
a switching supply. He is interested in using
it/them to research and to use as a service jig.
Any book recommendations would be appreciated.
Thanks.
--
_ /| William E. Miller AT&T Consumer Products Indpls, IN
\'o.O' These opinions are mine, and they're not for sale!!
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ACK! PHHT!gbell@pnet12.cts.com (Greg Bell) (01/29/89)
TI has an excellent three volume Linear Interface Applications set. I
remember one of them having a chapter on switching power supplies...
Greg Bell_________________________________________________________
Hardware hacker |
Electronics hobbyist | UUCP: uunet!serene!pnet12!gbell
EE major at UC San Diego |twheless@hpbsla.HP.COM (02/01/89)
Linear Technology's "Linear Applications Handbook 1987" has a long
app. note on switching power supply design. It's intended to be used
with their LT1070 Switcher IC but most of the information is general
in nature.
Various sections in the app. note talk about:
1. Basic Switching Regulator Topologies
2. Frequency Compensation
3. Driving External Transistors
4. Selecting Output Diodes
5. Input Filters
6. Efficiency Calculations
7. Output Filters
8. Selecting Input and Output Capacitors
9. Inductor and Transformer Basics
10. Heatsinking Information
11. Troubleshooting Hints
Most of the information is very useful and practical and I recommend it.
Tom Wheless
Boise Division
Hewlett-Packard
Boise, Idaho henry@utzoo.uucp (Henry Spencer) (02/09/89)
In article <870@inuxm.UUCP> micl23@inuxm.UUCP (W E Miller) writes: >I have a friend who is interested in designing >a switching supply. He is interested in using >it/them to research and to use as a service jig. He's aware, I hope, that switching supplies generally regulate poorly at low loads, so they are not good choices for research and service work where power demands vary a lot. -- Allegedly heard aboard Mir: "A | Henry Spencer at U of Toronto Zoology toast to comrade Van Allen!!" | uunet!attcan!utzoo!henry henry@zoo.toronto.edu
jeffw@midas.STS.TEK.COM (Jeff Winslow) (02/10/89)
In article <1989Feb8.225741.27473@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes: >In article <870@inuxm.UUCP> micl23@inuxm.UUCP (W E Miller) writes: >>I have a friend who is interested in designing >>a switching supply. He is interested in using >>it/them to research and to use as a service jig. > >He's aware, I hope, that switching supplies generally regulate poorly at >low loads, so they are not good choices for research and service work >where power demands vary a lot. I suppose this is true for most off-the-shelf cost-pared-to-the-bone supplies. But... There's about 50 zillion ways of designing a switching supply. Some topologies do have this problem, others don't. Since this person is interested in designing one rather than buying one off the shelf, he can make sure it doesn't have the problem. If nothing else, he can post-regulate with linear regulators or always have a minimum load connected. Jeff Winslow
jim@mnetor.UUCP (Jim Stewart) (02/14/89)
In article <1989Feb8.225741.27473@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes: >He's aware, I hope, that switching supplies generally regulate poorly at >low loads, so they are not good choices for research and service work >where power demands vary a lot. The typical solution is to have either a passive or active load to draw the minimum required current. -- Jim Stewart, VE3SRJ UUCP: {utzoo,uunet}!mnetor!jim ARPA: jim%mnetor.uucp@uunet.uu.net BELL: (416)475-8980