Clock apparatus
AssigneeISSC Technologies Corp.
InventorYi-Lung Chen
Life of this patent
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Abstract
The invention provides a clock apparatus includes a clock source, a first resistor, a diode, an amplifier, and an oscillator. The current source provides a current, and the current has a first temperature coefficient. The first resistor has a first end, and the first end receives the current. The anode of the diode is coupled to a second end of the first resistor, the cathode of the diode is coupled to a reference ground. The diode has a second temperature coefficient. The amplifier receives a power source. The amplifier generates an output voltage according to the power source and a voltage on the first end of the first resistor. The oscillator receives the output voltage to be an operating power. Wherein, the first and second temperature coefficients are complementary.
Claims8
A clock apparatus, comprising:
- a current source, providing a current, and the current having a first temperature coefficient;
- a first resistor, having a first end coupled to the current source for receiving the current;
- a diode, having an anode coupled to a second end of the first resistor, a cathode of the diode being coupled to a reference ground, the diode having a second temperature coefficient;
- an amplifier, coupled to the first end of the first resistor and receiving a power source, the amplifier generating an output voltage according to the power source and a voltage on the first end of the first resistor;
- and
- an oscillator, coupled to the amplifier for receiving the output voltage to be an operating power,
- wherein, the first and second temperature coefficients are complementary.
Dependencies are inferred from the claim text.