Voltage Supply Insensitive Bias Circuits
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0 Petitions
Accused Products
Abstract
A voltage-insensitive circuit includes a second circuit, and a biasing means for providing a constant bias current to the second circuit, the bias current being insensitive to power fluctuations of the voltage-insensitive circuit.
58 Citations
22 Claims
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1-11. -11. (canceled)
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12. A voltage-insensitive bias circuit, comprising:
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a first bipolar transistor having a first base, a first collector and a first emitter, wherein the first base is connected to a first reference node, the first collector is connected to a power voltage node and the first emitter provides a first bias output to a second circuit, the first bias output being appreciably insensitive to voltage fluctuations of the voltage power node; a reference resistor connected between the power voltage node and the first reference node; and a second bipolar transistor having a second base, a second collector and a second emitter, wherein the second base is connected to the first reference node, the second emitter is coupled to a ground node via a first diode and the second collector is coupled to a third transistor. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A voltage-insensitive circuit, comprising:
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a second circuit; and a biasing means for providing a constant bias current to the second circuit. the bias current being insensitive to power fluctuations of the voltage-insensitive circuit. - View Dependent Claims (21, 22)
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Specification