Switching Mode Power Supply.pdf

(1372 KB) Pobierz
448376745 UNPDF
SMPSRM/D
Rev. 1, Sept-1999
SWITCHMODE™ Power
Supply Reference Manual
ON Semiconductor
Formerly a Division of Motorola
448376745.008.png 448376745.009.png 448376745.010.png 448376745.011.png 448376745.001.png 448376745.002.png
SWITCHMODE Power Supplies
Reference Manual and Design Guide
SMPSRM/D
Rev. 1, Sept–1999
448376745.003.png 448376745.004.png
SMPSRM
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make
changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products
for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims
any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters,
including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under
its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC
product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended
or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or
death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture
of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
USA/EUROPE Literature Fulfillment :
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone : 303–675–2175 or 800–344–3860 Toll Free USA/Canada
Fax : 303–675–2176 or 800–344–3867 Toll Free USA/Canada
Email : ONlit@hibbertco.com
Fax Response Line *: 303–675–2167
800–344–3810 Toll Free USA/Canada
*To receive a Fax of our publications
N. America Technical Support : 800–282–9855 Toll Free USA/Canada
ASIA/PACIFIC : LDC for ON Semiconductor – Asia Support
Phone : 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)
Email : ONlit–asia@hibbertco.com
JAPAN : ON Semiconductor, Japan Customer Focus Center
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549
Phone : 81–3–5487–8345
Email : r14153@onsemi.com
ON Semiconductor Website: http://onsemi.com
For additional information, please contact your local Sales Representative.
448376745.005.png
SMPSRM
Forward
Every new electronic product, except those that are battery powered, requires converting off–line
115 Vac or 230 Vac power to some dc voltage for powering the electronics. The availability of design
and application information and highly integrated semiconductor control ICs for switching power
supplies allows the designer to complete this portion of the system design quickly and easily.
Whether you are an experienced power supply designer, designing your first switching power
supply or responsible for a make or buy decision for power supplies, the variety of information
in the SWITCHMODE
Power Supplies Reference Manual and Design Guide should prove
useful.
ON Semiconductor has been a key supplier of semiconductor products for switching power supplies
since we introduced bipolar power transistors and rectifiers designed specifically for switching
power supplies in the mid–70’s. We identified these as SWITCHMODE
This brochure contains useful background information on switching power supplies for those who
want to have more meaningful discussions and are not necessarily experts on power supplies. It also
provides real SMPS examples, and identifies several application notes and additional design
resources available from ON Semiconductor, as well as helpful books available from various
publishers and useful web sites for those who are experts and want to increase their expertise. An
extensive list and brief description of analog ICs, power transistors, rectifiers and other discrete
components available from ON Semiconductor for designing a SMPS are also provided. This
includes our newest GREENLINE
, Easy Switcher and very high voltage ICs (VHVICs), as well
as high efficiency HDTMOS
and HVTMOS
power FETs, and a wide choice of discrete products
in surface mount packages.
For the latest updates and additional information on analog and discrete products for power supply and
power management applications, please visit our website: ( http://onsemi.com ).
GREENLINE, MEGAHERTZ, POWERTAP, SENSEFET, SWITCHMODE, SMARTMOS and TMOS are trademarks of
Semiconductor Components Industries, LLC (SCILLC).
HDTMOS and HVTMOS are registered trademarks of Semiconductor Components Industries, LLC (SCILLC).
http://onsemi.com
3
products. A switching
power supply designed using ON Semiconductor components can rightfully be called a
SWITCHMODE power supply or SMPS.
448376745.006.png
SMPSRM
Table of Contents
Page
“What Everyone Should Know About Switching Power Supplies’’ by Marty Brown
. . . . . . . . . . . . . . . . . . . . . . . .
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Linear versus Switching Power Supplies
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common Topologies
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Factor Correction
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quasi-Resonant Converters
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Losses and Stresses within Switching Power Supplies
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
Bipolar Power Transistors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
Power MOSFETs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Methods of Control
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optoisolated Voltage Feedback
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First-Pass Selection of Semiconductors
23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transformers and Inductors
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Snubbers and Clamps
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Printed Circuit Board Layout
27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Line Power Supply Design and Safety Tips
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Circuits for Switching Power Supply
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
Suggested Components for Specific Applications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
Real SMPS Applications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Notes, Brochures, Device Data Books and Device Models
55
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
References for Switching Power Supply Design
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Websites
57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
58
Analog ICs for SWITCHMODE Power Supplies
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Systems Management Circuits
61
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
128
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON Semiconductor Standard Document Type Definitions
135
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
136
http://onsemi.com
4
Introduction
Basic Converters
Rectifiers
Other Design Considerations
Cores
SMPS Examples
Literature Available from ON Semiconductor
Books
Power Management Circuits
ON Semiconductor Worldwide Sales Offices
448376745.007.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin