Compact electrical power supply for signal processing...

H - Electricity – 02 – M

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H02M 3/335 (2006.01) H02M 3/155 (2006.01) H02M 3/337 (2006.01) H02M 1/00 (2006.01)

Patent

CA 1218698

A COMPACT ELECTRICAL POWER SUPPLY FOR SIGNAL PROCESSING APPLICATIONS ABSTRACT OF THE DISCLOSURE The present invention relates to a compact electrical power supply which derives electrical energy from a low frequency medium voltage source (e.g., a 120V 60Hz ac main), and converts the electrical energy to a low voltage format suitable for solid state signal processing equipment. The supply entails in succession bridge rectification means, a dc-dc boost converter, a capacitor storage bank, and a half bridge converter, either resonantly or non-resonantly operated. The converters operate at frequencies substantially above audible frequencies in the interests of compactness. The design provides a high input power factor (inductive) with minimum EMT, and provides a lengthened voltage hold up after loss of power.

466398

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