Patents Assigned to AEL Mirrotel, Ltd.
  • Patent number: 4293902
    Abstract: A switched mode power supply employs a pulse width modulation controlled DC-to-DC converter to change a first voltage from a source of DC power into a regulated power source providing direct current at a second DC voltage. A transformerless current-sensing device is adapted for connection in the path between said source and said converter and provides a control signal which is representative of the current flowing in said path. A current-limiter control circuit is responsive to said control signal and provides an enabling output state when the sensed-current exceeds a predetermined value. The enabling state overrides the pulse width modulator control and inhibits the converter, thus terminating the output pulse when the sensed current exceeds said predetermined value.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: October 6, 1981
    Assignee: AEL Mirrotel, Ltd.
    Inventor: John E. White