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参数资料
| 型号： | TDA4814A |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 稳压器 |
| 英文描述： | POWER FACTOR CONTROLLER, PDIP14 |
| 封装： | PLASTIC, DIP-14 |
| 文件页数： | 6/17页 |
| 文件大小： | 321K |
| 代理商： | TDA4814A |
Version 2.0
14
1 Jun 1996
TDA 4814
Discontinuous Operation Mode with Variable Frequency
The TDA 4814 A work in a discontinuous operation mode with variable frequency.
The principle of a freely oscillating controller exploits the physical relationship between current and
voltage at the boost converter choke. The current in the semiconductors flows in a triangular shape.
It is only when the current in the boost converter diode has gone to zero that the transistor goes
conductive. This arrangement does away with the diode’s power-squandering reverse currents.
If triangular currents flow continuously through the boost converter choke the input current
averaged over a high-frequency period is exactly half the peak of the high-frequency choke current.
If the peak values of the choke current are located along an envelope curve that is proportional to
a sinusoidal, low-frequency input voltage, the input current available after smoothing in an RFI filter
is sinusoidal.
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| TDA4817 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:Power Factor Controller IC for High Power Factor and Active Harmonic Filtering |
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