Wide input range, transient-immune regulated flyback switching power supply

摘要: A low cost switching mode power supply particularly adapted for use in an electric vehicle is characterized by extreme input voltage range, immunity to high transients, and stable operation. negative feedback arrangement applied a controllable clamp serves continuously vary oscillation pulse width frequency. The includes output filter capacitor, and, compensate phase lag introduced the elements introducing lead compensation. Preferably, period less than duration of expected regulates right through such transients.