A high-speed low dropout (HS-LDO) voltage regulation circuit suitable to enable a power gate unit to produce a variable voltage signal based on the load of a processor is disclosed herein. In various embodiments, selection logic may dynamically enable or disable the HS-LDO circuit to allow the power gate unit to operate under a fully-on or fully-off mode. Other embodiments may be disclosed or claimed.

A power supply device includes: a power supply circuit configured to supply electric power; a signal input-and-output portion to be coupled to a sub board, the sub board including a first load configured to receive the electric power and a voltage range generation circuit configured to generate a voltage range signal indicative of a power supply voltage range of the first load; and an arithmetic circuit configured to compute an output voltage of the power supply circuit based on the voltage range signal which is input via the signal input-and-output portion and first power supply voltage information relating to a first voltage at a first supply terminal of the first load to be supplied with the electric power.

A voltage and frequency scaling apparatus includes a processor, at least one sensor and a controller. The at least one sensor is electrically coupled to the processor. The at least one sensor measures at least one device characteristic of at least one logic circuit of a system on chip, and transmits at least one sensing result to the processor. The processor generates a control signal according to the at least one sensing result. The controller receives the control signal and adjusts at least one of the operating frequency and the operating voltage of at least one logic circuit. Furthermore, a system on chip (SoC) and a voltage and frequency scaling method are also described herein.

A voltage and frequency scaling apparatus includes a processor, at least one sensor and a controller. The at least one sensor is electrically coupled to the processor. The at least one sensor measures at least one device characteristic of at least one logic circuit of a system on chip, and transmits at least one sensing result to the processor. The processor generates a control signal according to the at least one sensing result. The controller receives the control signal and adjusts at least one of the operating frequency and the operating voltage of at least one logic circuit. Furthermore, a system on chip (SoC) and a voltage and frequency scaling method are also described herein.

A load control device for controlling the power delivered from an AC power source to an electrical load is able to receive radio-frequency (RF) signals from a Wi-Fi-enabled device, such as a smart phone, via a wireless local area network. The load control device comprises a controllably conductive device, a controller for rendering the controllably conductive device conductive and non-conductive, and a Wi-Fi module operable to receive the RF signals directly from the wireless network. The controller may cooperate with one or more other devices to synchronize in time the adjustments made by one or more load control devices that are operable to control the power delivered to one or more electrical loads. The one or more load control devices may also cooperate with one or more Internet based information providers to provide preconfigured and condition based adjustments of the one or more electrical loads.

A system includes a cooling system having a cooling fluid for cooling an engine and a radiator fan motor; a dynamic braking system configured to supply electrical energy to the fan motor during a braking event; and a controller that is operable to direct the electrical energy from the dynamic braking system to the fan motor to cool the coolant to a predetermined minimum threshold temperature. A method includes switching a vehicle thermal management system from a first mode of operation in which the coolant is maintained at a steady operating temperature to a second mode of operation in which the coolant is cooled to a minimum threshold temperature.