Abstract: A high efficiency integrated power converter adapted for direct connection to line voltage and having on chip protection from overcurrent may be implemented utilizing a GTO-SCR as the switch element in a switching power converter such that the converter requires no external transformer or inductor based voltage reducing circuitry. The input voltage may vary over a wide dynamic range without deterioration in circuit performance due to the extremely high anode to cathode breakdown voltage of the switching element and further due to the on chip protection from excess current flow through the switching element.

Abstract: An integrated circuit switch having a pair of serially connected SCRs with diodes connecting the gates of the SCRs to an independent bias source such that the second SCR is gated on first to enable the gating of the first SCR in the series connection.

Abstract: An integrated circuit switch having a pair of serially connected SCRs with diodes connecting the gates of the SCRs to independent biasing and switching sources such that the second SCR is gated on first to enable the gating of the first SCR in the series connection. A switch controls the state of the second SCR.

Abstract: A phase-to-voltage converter having a capacitor whose terminals are alternately charged by an AC voltage supply while the other terminal is fixed at a reference potential. The charging of the terminals is terminated by a switch which monitors the reversal of the current through the inductive load.

Abstract: A diode equalizing bridge wherein one pair of opposed diodes are forward-biased and a second pair of opposed diodes are reverse-biased so that the two capacitors at the opposed load terminals are charged and discharged by a current source and current sink connected to two opposed power terminals until the capacitors have equal voltages. The current source and sink are gated to activate and deactivate the bridge. For an AC power source, two diode bridges are used, one connected to each terminal of the capacitor to operate during the respective half cycle of the AC power source.