A power supply circuit in an embodiment includes a first transistor that supplies an output based on an input power supply voltage to a load or stops the supply of the output to the load, a second transistor, one end of a current path of which is connected to the gate of the first transistor and another end of the current path of which is connected to a reference potential point, the second transistor being turned on and off according to a level of a gate voltage of the second transistor, a capacitor connected between an input end of the power supply voltage and a gate of the second transistor, and a voltage holding circuit connected between the gate of the second transistor and the reference potential point and configured to hold the gate voltage of the second transistor.

A power supply circuit in an embodiment includes a first transistor that supplies an output based on an input power supply voltage to a load or stops the supply of the output to the load, a second transistor, one end of a current path of which is connected to the gate of the first transistor and another end of the current path of which is connected to a reference potential point, the second transistor being turned on and off according to a level of a gate voltage of the second transistor, a capacitor connected between an input end of the power supply voltage and a gate of the second transistor, and a voltage holding circuit connected between the gate of the second transistor and the reference potential point and configured to hold the gate voltage of the second transistor.

An apparatus is provided, which includes energy storage circuitry to store energy and to supply some of the energy to the apparatus. Discharge circuitry discharges the energy storage circuitry in response to the energy being supplied to the apparatus. Power supply circuitry recharges the energy storage circuitry. The discharge circuitry retains a non-zero residual energy in the energy storage circuitry when the energy storage circuitry is discharged by the discharge circuitry.

An apparatus is provided, which includes energy storage circuitry to store energy and to supply some of the energy to the apparatus. Discharge circuitry discharges the energy storage circuitry in response to the energy being supplied to the apparatus. Power supply circuitry recharges the energy storage circuitry. The discharge circuitry retains a non-zero residual energy in the energy storage circuitry when the energy storage circuitry is discharged by the discharge circuitry.

A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.

A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.

A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.

A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.

A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.

A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.