Abstract: A high density, multiple output switching power supply having internal mechanical and/or computer generated means for programming multiple operating specifications. The power supply defines a mass-produced base model, fully tested to a relevant safety or operating standard. The base model can be stocked and reprogrammed at the manufacturer or distributor locations into any one of a multitude of substantially different models, each meeting the relevant standards, that is then delivered directly to the end user.

Abstract: A high density, multiple output switching power supply having internal, but externally accessible, mechanical programmability means, or computer generated programmability, whereby a mass-produced, fully tested standard base model can be stocked and reprogrammed at the distributor locations into any one of a multitude of substantially different models that is then delivered directly to the end user.

Abstract: The present invention relates to high density electronic power supplies and more particularly switching power supplies employing a metallic enclosure and integral cooling means. The configuration employs an array of thermally conductive metal bars to optimally distribute heat from a number of dissipative elements to a thermally conductive metal element that has substantial surface area within an internally generated air stream. The thermally conductive metal element may be the metal enclosure that also acts as a heat sink or fins, both of which provide substantial surface area to the air stream.

Abstract: The present invention relates to high density electronic power supplies and more particularly switching power supplies employing a metallic enclosure and integral cooling means. The configuration employs an array of thermally conductive metal bars to optimally distribute heat from a number of dissipative elements to a thermally conductive metal element that has substantial surface area within an internally generated air stream. The thermally conductive metal element may be the metal enclosure that also acts as a heat sink or fins, both of which provide substantial surface area to the air stream.

Abstract: Transient protection apparatus and circuitry that allows a circuit being protected to operate during the transient and after the transient. Two types are included, one being a blocking type for use in severe conditions when little is known about the source of the transients and protection must be provided, and the other being a shunt suppresser type for use where the impedance of the transient or other parameters known about the transient allows such use. For the blocking type, when a transient voltage is detected, a series component (Q-1) decouples prevents the transient from reaching the circuit being protected. A charge pump (A-1) is provided that powers the circuit being protected during the duration of the transient. A shunt suppressor type provides a zener threshold (Z1) detector with a power boost provided by a MOSFET or IGBT (Q-30.