TEA1623PH Philips Semiconductors, TEA1623PH Datasheet - Page 7

• Manufacturer Part Number: TEA1623PH
• Description: STARplug
• Manufacturer: Philips Semiconductors

Philips Semiconductors
9397 750 12579
Product data sheet
Fig 4. Signals for valley switching.
Fig 5. Typical phase of drain ringing at switch-on.
A: Start of new cycle with valley switching.
B: Start of new cycle in a classical PWM system.
Reflected voltage at N
secondary
oscillator
stroke
valley
drain
RC
phase
( )
Rev. 01 — 17 March 2004
40
20
20
40
0
primary
0
stroke
V
o
= 80 V.
regulation level
200
secondary
stroke
TEA1623P; TEA1623PH
400
600
f (kHz)
001aaa311
secondary
ringing
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
800
B
col007
A
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