參數(shù)資料
型號(hào)： AN-16
英文描述： TOPSwitch Flyback Design Methodology
中文描述： TOPSwitch的反激式設(shè)計(jì)方法
文件頁(yè)數(shù)： 2/32頁(yè)
文件大?。?/td> 247K
代理商： AN-16
AN-16
A
6/96
2
1. System Requirements
V
ACMIN
, V
ACMAX
, f
L
, V
O
, P
O
,
η
, Z
2. Choose Feedback Circuit & V
B
3. Determine C
IN
, V
MIN
4. Determine V
OR
, V
CLO
5. Determine D
MAX
6. Set K
RP
7. Determine I
AVG
, I
P
, I
R
, I
RMS
8. Choose TOPSwitch
Y
N
9. Calculate T
D
10. P
D
Too High
N
Y
To Step 12
Step 1-2
Determine System Level Requirements
and Choose Feedback Circuit
11. I
P
= 0.9 x I
LIMIT
or
K
RP
=
1
Step 3-11
Choose The Smallest TOPSwitch
For The Required Power
PI-1868-052896
Figure 2A. TOPSwitch Flyback Design Flow Chart, Step 1 to 11.
scope of this application note. However, such requirements are
usually implemented by adding additional circuitry to the basic
converter configuration. The only part of the circuit configuration
that may change is the feedback circuitry. Depending on the
power supply output requirement, one of four possible circuits,
shown in Figures 3-6, will be chosen for the application.
The basic circuit configuration used in most
TOPSwitch
flyback
power supplies is shown in Figure 1 which also serves as the
reference circuit for component identifications used in the
descriptions throughout this application note.
Design Flow
Figure 2A, B and C present a design flow chart showing the
complete design procedure in 35 steps. With the basic circuit
configuration shown in Figure 1 as its foundation, the logic
behind this design approach can be summarized as following:
1. Determine system requirements and decide on feedback
circuit accordingly.
2. Find the smallest
TOPSwitch
capable for the application.
3. Design the smallest transformer for the
TOPSwitch
chosen.
4. Select all other components in Figure 1 to complete the
design.
相關(guān)PDF資料
PDF描述
AN-17 Flyback Transformer Design for TOPSwitch Power Supplies
AN-18 TOPSwitch Flyback Transformer Construction Guide
AN-19 TOPSwitch Flyback Power Supply Efficiency
AN-20 Transient Suppression Techniques for TOPSwitch Power Supplies
AN-22 OBSOLETE when inventory is depleted. 10% tolerance no l
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