Electricity: power supply or regulation systems – Input level responsive
Reexamination Certificate
2006-10-20
2009-02-17
Sterrett, Jeffrey L (Department: 2838)
Electricity: power supply or regulation systems
Input level responsive
C323S222000, C323S272000, C323S351000, C363S124000
Reexamination Certificate
active
07492142
ABSTRACT:
A DC chopper features a setting device, which sets a required current value signal being dependent on a filtered input voltage such that an oscillation of the input filter device and an oscillation of the current are phase-opposed. The DC chopper may further have a control device, which, depending on the input voltage, supplies a control signal and adds the control signal to the actual current value signal supplied to form a controlled actual current value signal. The DC chopper may optionally have a disconnection device, which receives a switch-off signal on the input side and, depending on the switch-off signal received, supplies a ramp disconnection signal, and an adding node which adds the actual current value signal to the ramp disconnection signal to form an elevated actual current value signal.
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Greenberg Laurence A.
Locher Ralph E.
Siemens Aktiengesellschaft
Stemer Werner H.
Sterrett Jeffrey L
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