Back to results
US 10,483,948 B2Granted
RC oscillator, motor-driven integrated circuit, and motor device
AssigneeJohnson Electric International AG
InventorsChiping Sun, Ken Wong, Huimin Guo, Yat Tung Lai, Shujuan Huang
Life of this patent
Estimating the term…
Abstract
A RC oscillator comprises a resistor unit. The resistor unit can comprise at least one set of compensation resistor. Each set of compensation resistor comprises a positive temperature coefficient resistor and a negative temperature coefficient resistor coupled in series with the positive temperature coefficient resistor.
Claims17
A motor driving integrated circuit, comprising:
- a RC oscillator including a resistor unit having at least one set of compensation resistor, wherein each set of compensation resistor comprises a positive temperature coefficient resistor and a negative temperature coefficient resistor coupled in series with the positive temperature coefficient resistor;
- and
- wherein during a power-on period of the motor driving integrated circuit, a frequency of a system clock signal output by the RC oscillator is one quarter of a highest frequency of the system clock signal.
Dependencies are inferred from the claim text.