Apparatus for Stabilizing Supply to a Consumer

摘要

The invention relates to a device for stabilizing the supply to a consumer from a buffer store, wherein during normal operation the consumer is supplied from an energy store. The device, which includes a DC-to-DC converter, a plurality of controllable switching elements and a control unit, is configured to (i) supply the consumer during normal operation, while bypassing components having power losses, directly from the energy store when the input voltage is greater than a preset first limit voltage, (ii) supply the consumer via the DC-to-DC converter fed from the energy store when the input voltage is below the first preset limit voltage, wherein the DC-to-DC converter converts the input voltage into an operating voltage of the consumer, and (iii) feed the DC-to-DC converter from the buffer store when the input voltage is below a second preset limit voltage until a voltage of the buffer store reaches the second preset limit voltage.

主权项

1. A device for stabilizing the supply to a consumer from a buffer store, wherein during normal operation the consumer is supplied from an energy store, and wherein the device comprises:
a DC-to-DC converter; a plurality of controllable switching elements; and a control unit configured to control switching states of the plurality of controllable switching elements based on an input voltage of the device, wherein the device is configured to: supply the consumer during normal operation, while bypassing components having power losses, directly from the energy store when the input voltage is greater than a first preset limit voltage, wherein the first preset limit voltage is a minimum voltage of the consumer required for the supply of said consumer; supply the consumer via the DC-to-DC converter fed from the energy store when the input voltage is below the first preset limit voltage, wherein the DC-to-DC converter converts the input voltage into an operating voltage of the consumer; and feed the DC-to-DC converter from the buffer store when the input voltage sinks below a second preset limit voltage until a voltage of the buffer store reaches the second preset limit voltage, wherein the second preset limit voltage is a minimum voltage for operation of the DC-to-DC converter.