Keywords: flyback transformer, flux leakage, voltage spikes, flyback clamping circuit, power losses.
The dependence of power losses in the clamping circuit on the output power at various carrier frequencies
The RCD clamping circuit consists of a fast recovery diode in series with a parallel combination of a capacitor and a resistor which is shown in Fig.
In this paper, various clamping circuits are discussed to improve the performance of Fly back converter.
The clamping circuit
recycles the energy stored in inductance [L.
The hydraulic clamping circuit
for the bed, or ram, has a separate hydraulic hose for direct control.
This requirement was implemented with an over-voltage clamping circuit
across the MOSFETs and a fast over-current shutdown.
Its ability to block drain voltages up to 180V means no external clamping circuit
is required, and its low standby current, typically 5mA, enables compliance with the Energy Star standby rating.
STMicroelectronics (NYSE:STM) has introduced a clamping circuit
to protect fly-back converters and switched-mode power supplies against over-voltage spikes.
The rugged connector provides a direct power connection and link to the application's control unit, eliminating the need for a clamping circuit
The device contains a 4 fsc burst-lock clock generating circuit, a synchronous separating circuit, a clamping circuit
for digital signal processing, an analog video switch and a 10-bit D-A converter.
Integrated clamping circuits
(both in high-side and low-side operational modes) ensure over-voltage protection plus under-voltage lockout.