Abstract: A current providing circuit, for providing an output current at an output terminal, comprising: a current providing module, coupled to a first predetermined voltage level, for providing the output current according to the first predetermined voltage level and a control voltage transmitted to the current providing module; and a control voltage generating module, for generating the control voltage corresponding to the first predetermined voltage level and a threshold voltage of the current providing module.

Abstract: A voltage doubler and an oscillating control signal generator controlling a charge pump (powered by a first voltage to provide a second voltage) of the voltage doubler are disclosed. The oscillating control signal generator includes a first input terminal receiving a fundamental oscillation signal, a second input terminal receiving a comparison result showing whether the second voltage is greater than a target value, a third input terminal operative to obtain an electric current consumption status at an output terminal of the charge pump, and an output terminal outputting an oscillating control signal for the control of the charge pump. Further, the oscillating control signal generator includes a logic circuit. The logic circuit generates the oscillating control signal by selectively blocking status changes of the fundamental oscillation signal according to the comparison result and the electric current consumption status.

Abstract: A current providing circuit, for providing an output current at an output terminal, comprising: a current providing module, coupled to a first predetermined voltage level, for providing the output current according to the first predetermined voltage level and a control voltage transmitted to the current providing module; and a control voltage generating module, for generating the control voltage corresponding to the first predetermined voltage level and a threshold voltage of the current providing module.

Abstract: A voltage doubler and an oscillating control signal generator controlling a charge pump (powered by a first voltage to provide a second voltage) of the voltage doubler are disclosed. The oscillating control signal generator includes a first input terminal receiving a fundamental oscillation signal, a second input terminal receiving a comparison result showing whether the second voltage is greater than a target value, a third input terminal operative to obtain an electric current consumption status at an output terminal of the charge pump, and an output terminal outputting an oscillating control signal for the control of the charge pump. Further, the oscillating control signal generator includes a logic circuit. The logic circuit generates the oscillating control signal by selectively blocking status changes of the fundamental oscillation signal according to the comparison result and the electric current consumption status.

Abstract: A voltage generator includes a controllable voltage divider, a pull-up circuit and a first pull-down circuit. The controllable voltage divider is utilized for generating an output voltage at an output node of the controllable voltage divider according to a first reference voltage, a second reference voltage, and a control signal, wherein the second reference voltage is lower than the first reference voltage. The pull-up circuit is coupled to the output node of the controllable voltage divider and the first reference voltage, and is utilized for selectively connecting the first reference voltage to the output node of the controllable voltage divider. The first pull-down circuit is coupled to the output node of the controllable voltage divider and the second reference voltage, and is utilized for selectively connecting the second reference voltage to the output node of the controllable voltage divider.

Abstract: A voltage generator includes a controllable voltage divider, a pull-up circuit and a first pull-down circuit. The controllable voltage divider is utilized for generating an output voltage at an output node of the controllable voltage divider according to a first reference voltage, a second reference voltage, and a control signal, wherein the second reference voltage is lower than the first reference voltage. The pull-up circuit is coupled to the output node of the controllable voltage divider and the first reference voltage, and is utilized for selectively connecting the first reference voltage to the output node of the controllable voltage divider. The first pull-down circuit is coupled to the output node of the controllable voltage divider and the second reference voltage, and is utilized for selectively connecting the second reference voltage to the output node of the controllable voltage divider.