SYSTEM AND METHOD FOR CONTROLLING A VOLTAGE SUPPLY
First Claim
1. A system, comprising:
- at least one electronic circuit; and
a voltage supply unit coupled to an input of the at least one electronic circuit, the voltage supply unit including;
a power unit to supply a voltage to the at least one electronic circuit; and
a control unit to control an operating mode of the power unit, an output of the control unit coupled to an input of the power unit, the control unit including;
a mode selector to select the operating mode of the power unit, coupled to at least a first output of the power unit;
an amplifier coupled to the at least a first output of the power unit;
a compensation circuit; and
a first switching unit coupled to the mode selector and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the power unit is a first mode.
2 Assignments
0 Petitions
Accused Products
Abstract
A system, voltage supply circuit, control unit for a voltage supply circuit, and method of controlling a voltage supply circuit are disclosed. For example, a system is disclosed that comprises at least one electronic circuit and a voltage supply unit coupled to an input of the at least one electronic circuit. The voltage supply unit includes a power unit to supply a voltage to the at least one electronic circuit and a control unit to control an operating mode of the power unit, an output of the control unit coupled to an input of the power unit. The control unit includes a mode selector to select the operating mode of the power unit, coupled to at least a first output of the power unit, an amplifier coupled to the at least a first output of the power unit, a compensation circuit, and a first switching unit coupled to the mode selector and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the power unit is a first mode.
43 Citations
30 Claims
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1. A system, comprising:
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at least one electronic circuit; and a voltage supply unit coupled to an input of the at least one electronic circuit, the voltage supply unit including; a power unit to supply a voltage to the at least one electronic circuit; and a control unit to control an operating mode of the power unit, an output of the control unit coupled to an input of the power unit, the control unit including; a mode selector to select the operating mode of the power unit, coupled to at least a first output of the power unit; an amplifier coupled to the at least a first output of the power unit; a compensation circuit; and a first switching unit coupled to the mode selector and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the power unit is a first mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A voltage supply circuit, comprising:
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a power unit to output a Direct Current (DC) voltage, the power unit including an inductor and at least one transistor to charge or discharge the inductor; and a control unit to control an operating mode of the power unit, coupled to the at least one transistor, the control unit including; a mode selector to receive at least one of a voltage signal and a current signal associated with a current flow through the inductor, and select at least one of a Pulse Width Modulation (PWM) mode and a Pulse Frequency Modulation (PFM) mode of operation of the power unit responsive to the at least one of a voltage signal and a current signal; an amplifier to receive a reference voltage signal and the voltage signal, and output a signal associated with a difference between a value of the reference voltage signal and a value of the voltage signal; a compensation circuit to smooth a mode transition of the power unit to at least one of the PWM mode and the PFM mode; and a first switching unit coupled to the mode selector and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the power unit is a first mode. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A control unit for a voltage supply circuit, comprising:
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a mode selector to select an operating mode of the voltage supply circuit, coupled to a first output of the voltage supply circuit; an amplifier coupled to the first output of the voltage supply circuit; a compensation circuit; and a first switching unit coupled to the mode selector and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the voltage supply circuit is a first mode. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A method of controlling a voltage supply circuit, comprising:
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receiving at least one of a voltage signal and a current signal associated with a current flow through an inductor in the voltage supply circuit; selecting at least one of a PWM mode and a PFM mode of operation of the voltage supply circuit responsive to the at least one of a voltage signal and a current signal; and smoothing a transition of the voltage supply circuit power unit to the PWM mode or the PFM mode of operation. - View Dependent Claims (29, 30)
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Specification