Patent ID: 11929745
Assignee: HIMAX TECHNOLOGIES LIMITED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A clock generator, comprising:
a resistor-capacitor-based voltage-controlled oscillator (RC-based VCO) that generates an output signal with oscillation frequency controlled by an input voltage at an input node; and
a temperature compensator that generates the input voltage to compensate change of the oscillation frequency associated with a change in temperature;
wherein the temperature compensator comprises:
a proportional-to-absolute-temperature (PTAT) current generator that generates a PTAT current increasing with increasing temperature;
a voltage divider connected between a supply voltage and ground, with an interconnected node coupled to receive the PTAT current;

wherein the PTAT current flows through an output node of the PTAT current generator, and said output node is directly connected to the interconnected node of the voltage divider, such that the PTAT current flows directly into or out of the interconnected node of the voltage divider.