초록 ▼

A modular power supply system (10) is provided for providing a multiplicity of output voltages from a plurality of respective converter modules (70a-70n). Each of the converter modules (70a-70n) has an input coupled to a DC high voltage bus (22) from which a respective output voltage is generated. T

A modular power supply system (10) is provided for providing a multiplicity of output voltages from a plurality of respective converter modules (70a-70n). Each of the converter modules (70a-70n) has an input coupled to a DC high voltage bus (22) from which a respective output voltage is generated. The voltage supplied on DC bus (22) is generated by a power factor corrected boost converter circuit (20) which is coupled to an AC input source (12). Further, a battery backup module (40) is coupled to the high voltage DC bus (22) for supplying backup power whenever the bus voltage drops below a predetermined level.

대표청구항 ▼

A power supply, comprising: a. switching means for generating an oscillation signal responsive to a switching control signal; b. inverter means coupled to said switching means for converting a direct current voltage of a first magnitude to an output voltage of a second magnitude responsive to said o

A power supply, comprising: a. switching means for generating an oscillation signal responsive to a switching control signal; b. inverter means coupled to said switching means for converting a direct current voltage of a first magnitude to an output voltage of a second magnitude responsive to said oscillation signal, said inverter means including an inverter transformer having a winding structure adapted to provide a controlled leakage reactance for maintaining stable circuit conditions, said inverter transformer having a primary winding coupled to said switching means for coupling said oscillation signal thereto; c. pulse width modulator means coupled to said switching means for generating said switching control signal responsive to at least one feedback signal and an absence of an inhibit signal; and, d. control means coupled to said pulse width modulator means for generating an inhibit signal for terminating said switching control signal responsive to said direct current voltage first magnitude being less than a predetermined value, said predetermined value being greater than zero.