CPC H05B 45/10 (2020.01) [H03M 1/68 (2013.01); H05B 45/37 (2020.01)] | 18 Claims |
1. A method, comprising:
receiving, by a driver, a first control signal, wherein the driver includes a power regulator having a regulator output, and the driver further including current sources, each current source having a respective current source input coupled to the regulator output;
receiving, by the driver, a second control signal;
in response to the driver determining that the second control signal has a first value, instructing a digital-to-analog converter (DAC) to produce a current with a first voltage headroom (VHR) value, responsive to the first control signal and a reference current; and
in response to the driver determining that the second control signal has a second value, instructing the DAC to produce the current with a second VHR value.
|