Patent ID: 11901948
Assignee: CARL ZEISS SMT GMBH
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A drive device, comprising:
a modulation device configured to generate a 1-bit wide pulse width modulation signal on the basis of an N-bit wide input signal;
an amplifier unit configured to generate an amplified signal on the basis of the 1-bit wide modulation signal;
a filter unit configured to filter the amplified signal and to output the filtered signal to drive an actuator; and
a first unit configured to generate the N-bit wide input signal on the basis of a drive signal, wherein the first unit is configured to generate the input signal on the basis of at least one member selected from a group consisting of: i) a high-voltage feedback of a voltage supply of the amplifier unit; and ii) a drive voltage feedback of the filtered signal.