Disclosed herein is a switching power supply circuit that includes a switching circuit having an input node connected to an input power supply terminal and an output node connected to an output power supply terminal through an output switch, a feedback circuit configured to feed back information based on a voltage appearing at the output node to the switching circuit, and an activation circuit configured to turn ON the output switch after an elapse of a predetermined time after a voltage appearing at the output node exceeds a predetermined value. The switching circuit is configured to adjust a level of a voltage appearing at the output node based on the information to a predetermined level. The feedback circuit includes an adjustment mechanism configured to adjust a relation between a voltage appearing at the output node and the information.

A variable de-energizing phase duty cycle D.sub.d is generated based on an input signal to optimize for a low duty cycle in a freewheeling phase. A variable energizing phase duty cycle D.sub.e is generated based on a buck-boost control loop tracking the input signal. A tri-state buck-boost converter is controlled using the variable energizing phase duty cycle D.sub.e and the variable de-energizing phase duty cycle D.sub.d.

The present invention concerns an electronic device comprising: a first switch (T1) having a single voltage blocking direction; a second switch (T2) electrically in series with the first switch between two nodes (15, 17) of application of a DC voltage; and a module configured to supply the second switch with a control signal, referenced to the potential (COM) of a midpoint (16) between the two switches.

Methods and apparatuses are provided in which a level shifter of a digital control circuit for a switchable voltage supply circuit shifts a domain level of a first input. A first inverter of the digital control circuit inverts output of the first level shifter to output a first gain voltage to turn on a first switch of the switchable voltage supply circuit or output a second gain voltage to turn off the first switch. A second inverter of the digital control circuit inverts a second input to output a third gain voltage to turn on a second switch of the switchable voltage supply circuit or output a fourth gain voltage to turn off the second switch. The first gain voltage is greater than the third gain voltage.

In embodiments, a voltage regulator has an input node to receive an input voltage and an output node. The voltage regulator has a charge pump circuit that receives a boosting control signal to boost the input voltage based on the boosting control signal. The voltage regulator further has a feedback regulation circuit configured to receive the output voltage and to provide a first operation control signal and a second operation control signal as a function of the output voltage; a phase control circuit configured to receive the first operation control signal and to provide the boosting control signal as a function of the first operation control signal; and a filter coupled to the output node, configured to receive the second operation control signal and configured to inject to or sink from the output node a charge that is a function of the second operation control signal.

A command device is connected with a serial line to a driving device for controlling operations of a plurality of first switching elements and one or more second switching elements. The command device includes a command signal generator to generate a plurality of first command signals and one or more second command signals, an encoder to generate encoded data by encoding at least some signals of the plurality of first command signals and the one or more second command signals, and a command-device serializer to generate serial command data through serial conversion of the encoded data and transmit the serial command data to the driving device via the serial line.

A drive device for a vehicle, including an electric machine having a stator housing, on whose outer circumference a pulse width modulated inverter housing is formed, in which a pulse width modulated inverter having at least one pulse width modulated inverter contact is arranged, which is connected to a stator contact via a contact bridge, an AC filter being assigned to the contact bridge to reduce common mode flows and/or for the purpose of EMC shielding. According to the invention, the AC filter is a component separate from the pulse width modulated inverter and may be mounted in the pulse width modulated inverter housing independently of the pulse width modulated inverter.

A controller for controlling a power stage having one or more phases is presented. The controller includes a reference circuit that generates a reference signal; a ramp generator generating a feedback ramp signal based on a feedback signal of the power stage; and a modulator generating a control signal for controlling at least one phase of the power stage. The control signal may include a series of pulses in which each pulse is associated with a corresponding phase of the power stage.

The power conversion device includes a rectifier circuit to convert an input voltage of a three-phase AC input from AC input terminals into a DC voltage, a converter to output an output voltage set to a set voltage value from the DC voltage, a smoothing capacitor connected between an output terminal and an output terminal of the converter, a filter disposed between the AC input terminals and the converter and including a filter capacitor, and a controller to control the converter. The converter is controlled with PWM by a control signal based on a command. The controller generates a command for reducing a difference between a detection value and a target value in a filter focusing target that is any one of a voltage, a current, a voltage ripple component, and a current ripple component of the filter.