SECONDARY POWER SUPPLY Russian patent published in 2007 - IPC G05F1/595 

FIELD: electro-technical complexes, possible use for ground testing of onboard electric equipment for autonomous objects, in particular, spaceships.

SUBSTANCE: secondary power supply contains, connected serially, impulse and continuous controlling elements, first voltage sensor between the output of continuous controlling element and common wire, connected by output to subtracting input of first controlling device, to adding input of the latter supporting voltage source is connected; second voltage sensor, first input of which is connected to output of impulse controlling element, and output is connected to subtracting input of second controlling device, and pilot load resistor. New feature is that device additionally includes third and fourth voltage sensors, third, fourth and fifth controlling devices, parallel-connected controlled key and decoupling diode, while parallel-connected controlled key and resistor by one unit are connected to output of continuous controlling element, by other unit to collector of transistor, emitter of which via resistor of pilot load is connected to common wire, to collector of transistor second input of second voltage sensor and first input of fourth voltage sensor are connected, second input of the latter being connected to common wire, and output - to subtracting input of fifth controlling device, to adding input of which cathode unit of diode block is connected, output of fifth controlling unit is connected to transistor base, anodic unit of diode block is connected to output of supporting voltage source, first input of third voltage sensor is connected to output of impulse controlling element, second input of this sensor is connected to output of continuous controlling element, and output of third voltage sensor through a filter is connected to inputs of third and fourth controlling devices, output of fourth controlling device is connected to key control input, while output of third controlling device is connected to control input of thyristor key, anodic unit of which is connected to output of impulse controlling element, and cathode unit is connected to continuous controlling element control input, output of first control device being connected to the same input via a decoupling diode.

EFFECT: preserved serviceability of supply in case of sudden failure of continuous controlling element and possible solution of emergency situation.

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