Abstract: A linear voltage regulator includes a series-pass element electrically coupled between an input node and an output node, current sense circuitry configured to generate a current sense signal representing at least magnitude of current flowing through the series-pass element, and control circuitry. The control circuitry is configured to control the series-pass element according to at least (a) the current sense signal and (b) a voltage sense signal representing magnitude of an output voltage, to clamp the magnitude of the output voltage to a maximum value, where the output voltage is a voltage at the output node, such that the magnitude of the output voltage decreases with increasing magnitude of current flowing through the series-pass element.

Abstract: Various embodiments of the invention provide extend the switching frequency range of DC/DC multiphase switching regulators in order to overcome prior art frequency limitations in the number of available phases, for example, in low input to output ratio applications. In certain embodiments, this is accomplished by enabling partial overlap between multiple phases using asynchronous logic. The invention is easily scalable without introducing significant silicon area penalties.

Abstract: Various embodiments of the invention provide extend the switching frequency range of DC/DC multiphase switching regulators in order to overcome prior art frequency limitations in the number of available phases, for example, in low input to output ratio applications. In certain embodiments, this is accomplished by enabling partial overlap between multiple phases using asynchronous logic. The invention is easily scalable without introducing significant silicon area penalties.

Abstract: A voltage multiplier includes a control circuit that generates first and second signals in phase opposition and a charging section. The latter comprises a first capacitor having a first terminal coupled to the first signal and a second capacitor having a first terminal coupled with the second signal. The multiplier includes respective parasitic capacitances placed respectively between the capacitors and a reference voltage. The charging section is coupled with an input voltage and is suitable for producing an output voltage that is a multiple of the constant voltage. The multiplier comprises a switch that selectively connects the parasitic capacitances to carry out a charge transfer from one parasitic capacitance to the other.

Abstract: An electric circuit includes a circuit path from a first reference voltage to a second reference voltage lower than the first reference voltage. The path includes a current generator, a capacitor, a first switching element suitable for connecting or disconnecting the capacitor with respect to the current generator. The first switching element has a triggering value and the electric circuit includes a second switching element placed in parallel to the capacitor and control elements suitable for acting on the first and second switching elements for controlling the charging and discharging of the capacitor. The control elements comprise a comparator operable during the charging of the capacitor and suitable for acting on the first switching element for blocking the charging of the capacitor when the voltage value at its terminals reaches a threshold voltage value. The threshold voltage value is lower than the triggering voltage of the first switching element and higher than the second reference voltage.

Abstract: A voltage multiplier includes a control circuit that generates first and second signals in phase opposition and a charging section. The latter comprises a first capacitor having a first terminal coupled to the first signal and a second capacitor having a first terminal coupled with the second signal. The multiplier includes respective parasitic capacitances placed respectively between the capacitors and a reference voltage. The charging section is coupled with an input voltage and is suitable for producing an output voltage that is a multiple of the constant voltage. The multiplier comprises a switch that selectively connects the parasitic capacitances to carry out a charge transfer from one parasitic capacitance to the other.

Abstract: An electric circuit includes a circuit path from a first reference voltage to a second reference voltage lower than the first reference voltage. The patha current generator, a capacitor, a first switching element suitable for connecting or disconnecting the capacitor with respect to the current generator. The first switching element has a triggering value and the electric circuit includes a second switching element placed in parallel to the capacitor and control elements suitable for acting on the first and second switching elements for controlling the charging and discharging of the capacitor. The control elements comprise a comparator operable during the charging of the capacitor and suitable for acting on the first switching element for blocking the charging of the capacitor when the voltage value at its terminals reaches a threshold voltage value. The threshold voltage value is lower than the triggering voltage of the first switching element and higher than the second reference voltage.