Current generator circuit and methods for providing an output current
First Claim
1. An apparatus, comprising:
- a first circuit configured to receive first and second input currents and provide an output current to a capacitor to produce an output voltage, the output current based at least in part on the first input current; and
a second circuit configured to receive a reference current and provide the first and second input currents based at least in part on the output voltage and the reference current.
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Accused Products
Abstract
Current circuits, circuits configured to provide a bias voltage, and methods for providing a bias voltage are described, including a current circuit configured to receive a reference current and having an output at which an output current is provided. One such current circuit includes a first current mirror configured to receive a first portion of the reference current and further configured to mirror the first portion of the reference current to provide a first current. The current circuit further includes a second current mirror configured to receive a second portion of the reference current and receive the first current. The second current mirror is further configured to provide a portion of the first current to the output of the current circuit as the output current and to receive another portion of the first current and mirror the same as the second portion of the reference current.
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Citations
20 Claims
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1. An apparatus, comprising:
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a first circuit configured to receive first and second input currents and provide an output current to a capacitor to produce an output voltage, the output current based at least in part on the first input current; and a second circuit configured to receive a reference current and provide the first and second input currents based at least in part on the output voltage and the reference current. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device, comprising:
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an input circuit configured to provide first and second input currents, wherein the first and second input currents are relatively adjusted based a value of an output voltage; and an output circuit configured to provide an output current to a capacitor to establish the output voltage, wherein the output current is based on the first and second input currents and wherein changes to the output current adjusts the output voltage. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method, comprising:
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receiving a reference current at a first circuit; providing first and second input currents at a second circuit, the first and second input currents based on the reference current; providing an output current based on the first and second input currents, causing an output voltage to be established across a capacitor; and adjusting the output voltage based at least on changes to the first input current. - View Dependent Claims (18, 19, 20)
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Specification