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參數(shù)資料
| 型號： | TDA16846G |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.1 A POWER FACTOR CONTROLLER, 98 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | PLASTIC, DSO-14 |
| 文件頁數(shù)： | 5/28頁 |
| 文件大?。?/td> | 586K |
| 代理商： | TDA16846G |
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TDA 16846
TDA 16846-2
Data Sheet
13
2003-07-31
Error Amplifier EA / Soft-Start (Pin 3, Pin 4)
Figure 9 shows the simplified Error Amplifier circuit. The positive input of the Error
Amplifier (EA) is the reference voltage 5 V. The negative input is the pulsed output
voltage from the auxiliary winding, divided by
R
31 and R32. The capacitor C3 is
dimensioned only for delaying zero crossings and smoothing the first spike after switch-
off. Smoothing of the regulation voltage is done with the soft start capacitor
C
4 at Pin 4.
During start up
C
4 is charged with a current of approx. 2 A (Soft Start). For primary
regulation
C
4 is charged and discharged with pulsed currents. Figure 10 shows the
voltage diagrams of the Error Amplifier circuit.
Figure 9
Error Amplifier
Figure 10
Regulation Pulse Diagram
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