Apparatus for compensating for temperature and method therefor
First Claim
1. An apparatus for compensating for a temperature, the apparatus comprising:
- a reference signal generator configured to supply a first current which is constant regardless of a temperature variation and a second current which is proportional to temperature variation;
a slope amplifier configured to determine a first output current based on a difference between a multiple of the first current and a multiple of the second current;
a slope controller comprising at least one transistor, the slope controller configured to determine a second output current using a weighted average of the first current and the second current, wherein a weight value for the weighted average being related to a characteristic of the at least one transistor; and
a bias distributor configured to supply a bias current to at least one other apparatus using at least one of the first output current and the second output current,wherein a first temperature coefficient of the bias current is greater than a second temperature coefficient of the second current, andwherein the first temperature coefficient and the second temperature coefficient is a rate of a temperature change with respect to the temperature variation.
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Abstract
Disclosed are a temperature compensation apparatus and method. The apparatus includes a reference signal generator that supplies at least one of a first current which is constant regardless of temperature variation and a second current which is proportional to temperature variation, a slope amplifier that determines a first output current having a second temperature coefficient which is a multiple of a first temperature coefficient of the second current, based on the first current and the second current, and a slope controller that determines a second output current having a third temperature coefficient, using a weighted average of the first current and the second current.
19 Citations
20 Claims
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1. An apparatus for compensating for a temperature, the apparatus comprising:
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a reference signal generator configured to supply a first current which is constant regardless of a temperature variation and a second current which is proportional to temperature variation; a slope amplifier configured to determine a first output current based on a difference between a multiple of the first current and a multiple of the second current; a slope controller comprising at least one transistor, the slope controller configured to determine a second output current using a weighted average of the first current and the second current, wherein a weight value for the weighted average being related to a characteristic of the at least one transistor; and a bias distributor configured to supply a bias current to at least one other apparatus using at least one of the first output current and the second output current, wherein a first temperature coefficient of the bias current is greater than a second temperature coefficient of the second current, and wherein the first temperature coefficient and the second temperature coefficient is a rate of a temperature change with respect to the temperature variation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 18)
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9. A method for compensating for a temperature in a device, the method comprising:
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supplying a first current which is constant regardless of a temperature variation and a second current which is proportional to the temperature variation; determining a first output current based on a difference between a multiple of the first current and a multiple of the second current; determining a second output current using a weighted average of the first current and the second current, wherein a weight value for the weighted average being related to a characteristic of at least one transistor of the device; and supplying a bias current to at least one other device using at least one of the first output current and the second output current, wherein a first temperature coefficient of the bias current is greater than a second temperature coefficient of the second current, and wherein the first temperature coefficient and the second temperature coefficient is a rate of a temperature change with respect to the temperature variation. - View Dependent Claims (10, 11, 12, 13, 19)
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14. A method by a temperature compensation apparatus, the method comprising:
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generating a first current which is constant regardless of a temperature variation and a second current which is proportional to the temperature variation; determining a first output current based on a difference between a multiple of the first current and a multiple of the second current; determining a second output current using a weighted average of the first current and the second current, wherein a weight value for the weighted average is related to a characteristic of at least one transistor of the temperature compensation apparatus; and supplying a bias current to at least one other apparatus using at least one of the first output current and the second output current, wherein a first temperature coefficient of the bias current is greater than a second temperature coefficient of the second current, and wherein the first temperature coefficient and the second temperature coefficient is a rate of a temperature change with respect to the temperature variation. - View Dependent Claims (15, 16, 17, 20)
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Specification