초록 ▼

A fully regulated multiple source power bus subsystem for a satellite having at least a solar panel array and a battery providing unregulated sources of electrical power. The battery and solar panel array are connected to one or more multiple source bus regulators to produce a fully regulated bus ou

A fully regulated multiple source power bus subsystem for a satellite having at least a solar panel array and a battery providing unregulated sources of electrical power. The battery and solar panel array are connected to one or more multiple source bus regulators to produce a fully regulated bus output at one or more preselected voltages. Each multiple source bus regulator automatically switches between the battery and solar panel array and may produce either a positive or a negative bus voltage. A battery charge controller controls the charging of the battery when the output voltage of the solar panel array is greater than the output voltage of the battery.

대표청구항 ▼

[ What is claimed is:] [1.] A fully regulated multiple source power bus subsystem, comprising:a first unregulated source of electrical power having a voltage output;at least a second source of unregulated electrical power having a voltage output; andat least one multiple source bus regulator receivi

[ What is claimed is:] [1.] A fully regulated multiple source power bus subsystem, comprising:a first unregulated source of electrical power having a voltage output;at least a second source of unregulated electrical power having a voltage output; andat least one multiple source bus regulator receiving unregulated electrical power from said first and said at least a second source of unregulated power to produce a regulated preselected bus voltage, said at least one multiple source bus regulator automatically switching between said first and said at least a second unregulated source of electrical power based on which voltage output of said first and at least second unregulated source is greater, wherein said at least one multiple source bus regulator comprises:a multiple tap buck transformer having an input end and an output end with a voltage;a first switch periodically connecting said first unregulated source of electrical power to said input end of said transformer in response to a first wave train signal;a second switch periodically connecting said at least one second source of electrical power to a first tap on said transformer in response to said first wave train signal;a third switch periodically connecting a second tap on said transformer to ground in response to a second wave train signal which is a complement of said first wave train signal; anda voltage control circuit for generating said first wave train signal and said second wave train signal, said voltage control circuit responsive to the voltage at said output end of said transformer to generate and control duty cycles of said first and second wave train signals so as to maintain the voltage at said output end of said transformer at a preselected bus voltage.