Configurable voltage generator
First Claim
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1. A configurable voltage generator comprising:
- an oscillator module for generating a pumping signal;
a digital to analog (D/A) converter coupled to the oscillator for generating an analog signal of a predetermined voltage level based on the pumping signal as configured by a set of inputs thereof; and
a charge pump coupled to the D/A converter for producing a direct current (DC) output based on the analog signals generated by the D/A converter, wherein said direct current output is configurable by adjusting the inputs of the D/A converter.
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Abstract
A configurable voltage generator is disclosed for generating multiple levels of output. It includes an oscillator module for generating a pumping signal, a digital to analog (D/A) converter coupled to the oscillator for generating one or more analog signals of a predetermined voltage level based on the pumping signal as configured by a set of inputs thereof, and a charge pump coupled to the D/A converter for producing a direct current (DC) output based on the analog signals generated by the D/A converter.
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Citations
20 Claims
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1. A configurable voltage generator comprising:
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an oscillator module for generating a pumping signal;
a digital to analog (D/A) converter coupled to the oscillator for generating an analog signal of a predetermined voltage level based on the pumping signal as configured by a set of inputs thereof; and
a charge pump coupled to the D/A converter for producing a direct current (DC) output based on the analog signals generated by the D/A converter, wherein said direct current output is configurable by adjusting the inputs of the D/A converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A configurable voltage generator for providing a substrate-bias voltages for reducing leakage current, the generator comprising:
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an oscillator module for generating a square wave pumping signal;
a digital to analog (D/A) converter coupled to the oscillator for generating an analog signal of a predetermined voltage level based on the pumping signal as configured by a set of inputs thereof; and
a negative charge pump coupled to the D/A converter for producing a direct current (DC) output based on the analog signals generated by the D/A converter. - View Dependent Claims (13, 14, 15, 16)
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17. A method for producing one or more voltages by a configurable voltage generator for providing one or more substrate-bias voltages for reducing leakage current, the method comprising:
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activating an oscillator module for generating a square wave pumping signal;
selecting a set of inputs to a digital to analog (D/A) converter coupled to the oscillator for generating an analog signal of a predetermined voltage level based on the pumping signal; and
wherein a negative charge pump coupled to the D/A converter produces a direct current (DC) output based on the analog signals generated by the D/A converter as configured by the selected inputs. - View Dependent Claims (18, 19, 20)
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Specification