The present invention discloses an AVS scanning method, wherein the AVS scanning method includes the steps of: mounting a system on chip (SoC) on a printed circuit board (PCB), and connecting the SoC to a storage unit; enabling the SoC to read a boot code from the storage unit, and executing the boot code to perform an AVS scanning operation on the SoC to determine a plurality of target supply voltages respectively corresponding to a plurality of operating frequencies of the SoC to establish an AVS look-up table; and storing the AVS look-up table into the SoC or the storage unit.

The present invention discloses an AVS scanning method, wherein the AVS scanning method includes the steps of: mounting a system on chip (SoC) on a printed circuit board (PCB), and connecting the SoC to a storage unit; enabling the SoC to read a boot code from the storage unit, and executing the boot code to perform an AVS scanning operation on the SoC to determine a plurality of target supply voltages respectively corresponding to a plurality of operating frequencies of the SoC to establish an AVS look-up table; and storing the AVS look-up table into the SoC or the storage unit.

In a power converter that includes a switched-capacitor circuit connected to a switched-inductor circuit, reconfiguration logic causes the switched-capacitor circuit to transition between first and second switched-capacitor configurations with different voltage-transformation ratios. A compensator compensates for a change in the power converter's forward-transfer function that would otherwise result from the transition between the two switched-capacitor configurations.

An embodiment converter includes a magnetic material, a first circuit including a first winding surrounding the magnetic material and a clamp circuit configured to reset a power conversion operation, the first circuit being configured to convert power received from a first input voltage source to provide the converted power to a load, and a second circuit including a second winding surrounding the magnetic material, the second circuit being configured to convert power received from a second input voltage source to provide the converted power to the load and to perform the power conversion operation being reset by the clamp circuit.

A low EMI driver apparatus includes: a driver circuit configured to generate a driving signal according to a switch control signal, so as to drive at least one switch; and a driving strength control circuit configured to randomly control a driving strength of the driver circuit, thereby reducing an EMI generated when the at least one switch is driven according to the driving signal. In a specific form of the low EMI driver apparatus, the at least one switch includes plural switches, and the low EMI driver apparatus further includes: a dead time control circuit configured to randomly control a dead time between ON times of the plural switches, so as to reduce the EMI generated when the switches are driven according to the driving signal.

A switching converter circuit comprises a converting circuit stage, an error amplifier, and a control circuit. The converting circuit stage includes a magnetic circuit element and a switching circuit configured to convert an input voltage to a regulated output voltage by charging and discharging the magnetic circuit element using activation pulses generated using a system clock signal. The error amplifier generates a control voltage using the output voltage. The control circuit varies time between successive activation pulses according to the control voltage, and the successive activation pulses are synchronized to the system clock signal.

Embodiments of an SMPS controller and a method for operating a switched-mode power supply (SMPS) controller are described. In an embodiment, an SMPS controller includes a gate driver circuit configured to generate a drive signal for a switch of an SMPS and a current sense electrical terminal configured to receive sensed current corresponding to the switch and to conduct driver discharge current from the gate driver circuit.

A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) prefluxing the inductor then charging the capacitor causing an increased current to flow in the inductor and (2) prefluxing the inductor then discharging the capacitor causing increased current to flow in the inductor. The inductor prefluxing steps enable the circuit to provide increased output voltage and/or increased output current.

A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) prefluxing the inductor then charging the capacitor causing an increased current to flow in the inductor and (2) prefluxing the inductor then discharging the capacitor causing increased current to flow in the inductor. The inductor prefluxing steps enable the circuit to provide increased output voltage and/or increased output current.

An electronic transformer including a controller and a dimming control circuit. The controller is configured to control an output voltage. The dimming control circuit is configured to receive a user-input and output a control signal based on the user-input. The controller varies the output voltage based on the control signal. Wherein the output voltage is substantially the same regardless of an amplitude of an input voltage.