RcaPowerTransistorApplicationsManual_text.pdf

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Solid
State
APPLICATIONS
H
>
O
Power
Transistors
Power
Transistor
Applications
intended
as
a
guide
to
the
designers
of
power
transistor
circuits.
It
includes
a
brief
introduction
to
solid-state
physics
and
general
information
on
electrical
ratings,
packaging
is
This
Manual
and
mounting
techniques,
and
thermal
factors
for
power
transistor
devices.
Detailed
discussions
are
provided
on
the
theory
of
operation,
basic
design
concepts,
operating
parameters,
structures,
geometries,
and
capabilities
of
power
transistors.
Specific
design
criteria
and
procedures
are
supplied
for
circuits
that
use
power
transistors
in
the
amplification,
rectification,
conversion,
control,
and
switching
of
electrical
power.
Design
examples
are
given,
and
practical
circuits
are
shown
and
analyzed.
This
Manual
is
a
comprehensive,
authoritative,
up-to-date
text
on
the
design
of
power
transistor
circuits.
It
will
be
found
extremely
useful
by
circuit
and
systems
designers,
educators,
students,
hobbyists,
and
others.
Solid
Somerville,
NJ
•
Brussels
•
Paris
•
London
State
Hamburg
•
Sao
Paulo
•
Hong
Kong
Information
furnished
by
is
RCA
is
believed
to
be
accurate
and
reliable.
However,
no
responsibility
assumed
by
RCA
for
its
use;
nor
for
any
infringements
of
patents
or
other
rights
of
third
parties
which
may
result
from
its
use.
No
license
is
granted
by
implication
or
other-
wise
under
any
patent or
patent
rights
of
RCA.
Copyright
1983
by
RCA
Corporation
(All
rights
reserved
under
Pan-American
Copyright
Convention)
Printed
in
USA/
10-83
Trademark(s)®
Registered
Marca(s)
Registrada(s)
Hi
Contents
Page
Basic
Design
Considerations
3
3
,
Semiconductor
Materials
Junctions
Transistor
Structures
5
6
14
15
Geometries
Special
Processing
Techniques
RCA
SwitchMax
Power
Transistors
19
21
Packaging,
Handling
and
Mounting
Hermetic Packages
21
Packages
Special
Handling
Considerations
Plastic
Molded
26
30
31
31
Ratings
and
Characteristics
Basis
for
Device
Ratings
Voltage
Ratings
Current,
Temperature
and
Dissipation
Ratings
Effect
of
External
32
33
35
Heat
Sinks
Second
Breakdown
High-Voltage
Surface
Effects
Thermal-Cycling
Ratings
Safe-Operating-Area
Ratings
Basic Transistor
Characteristics
39
40
.41
Power
Transistors
in
Switching
Service
42
43
48
53
53
59
Linear
Regulators
for
Series
Regulators
DC
Power
Supplies
Basic
Power-Supply
Elements
Foldback-Limited
Regulated
Power
Supply
Foldback-Limited
Regulated
Supply
Using
a
Hybrid-Circuit
Regulator
High-Output-Current
Voltage
Regulator
with
Foldback
Current
Limiting
Shunt
Regulators
Switching-Regulator
Power
Supplies
Basic
Regulator
Operation
67
71
73
76
77
77
78
Design
of a
Practical
Switching-Regulator
Supply
Step-Down
Switching
Regulator
20-kHz
Switching
Regulator
Pulse-
Width-Modulated
Switching-Regulator
Supply
87
87
93
Power
Conversion
Basic
Circuit
Elements
95
95
95
100
105
Types
of
Inverters
and
Converters
Design
of
Practical
Inverter
Circuits
Design
of
Off-the-Line
Inverter
and
Converter
Circuits
230-
Watt,
40-kHz
Off-Line
Forward
Converter
340-
Watt,
20-kHz,
15-
Ampere
Off-Line
Flyback
Converter
450-
Watt,
40-kHz,
240
VAC-to-5
VDC
Forward
Converter
900-
Watt,
Off-Line
Half-Bridge
Converter
107
1
14
120
122

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