Patent ID: 8030907

Claim:
A pulse controller circuit for use in a DC-to-DC converter comprising: a load voltage input configured to receive a signal that is representative of the voltage which the DC-to-DC converter applies to a load; an inductance current input configured to receive a signal that is representative of the current through an inductance through which current flows from a source voltage supply to the load through an electronic switching system; a pulse generator circuit configured to generate pulses that have a frequency that increases in response to increases in the load on the DC-to-DC converter, the pulse generator circuit further being configured to cause each pulse to have a constant width, except when the pulse reaches the end of the constant width and the magnitude of the current through the inductance is less than a threshold value, in which case the pulse generator is configured to extend the pulse until the magnitude of the current through the inductance reaches the threshold value; and a pulse output configured to deliver the pulses generated by the pulse generator circuit to the electronic switching system.