Johnson Kindness PLLC
Current generator
An example current generator may include a low dropout regulator (LDO) coupled to receive a reference voltage and provide a reference current in response, where the LDO adjusts a current level of the current reference in response to a calibration signal. A current controlled oscillator coupled to receive a reference current copy from the LDO and generate an oscillating signal in response, where a period of the oscillating signal is based at least in part on a level of the reference current copy. A pulse generator coupled to provide an adjustable pulse signal. A counter coupled to determine a number of periods of the oscillating signal occurring during a duration of the pulse signal, and provide a control signal indicative of such, and a digital calibration circuit coupled to receive the control signal and provide the calibration signal to the LDO in response.
OmniVision Technologies, Inc.
H G H H H H H H
H04N G05F H01L H03B H04N H03B H03B H04N
inventional inventional inventional inventional inventional additional inventional inventional
Liping Yu-Shen Chun-Hsiang Yingkan
Deng Yang Chang Lin