The present disclosure relates to an interface comprising: a terminal for delivering a DC voltage; a comparator for delivering a first signal representative of a comparison of the DC voltage with a high threshold; a comparator for delivering a second signal representative of a comparison of the DC voltage with a low threshold; and a circuit configured to: deliver successive pairs of values of high and low thresholds for a time period after the DC voltage crosses a first value of the low threshold; modify successive pairs of values of the thresholds based on the first and second signals to determine values of thresholds surrounding the DC voltage; and determining a current value of the DC voltage based on the values of thresholds surrounding the DC voltage.

An apparatus comprises a first power supply, a second power supply, and a controller. The first power supply supplies a first input voltage to power a first input of a load over a first circuit path. The second power supply supplies a second input voltage to power a second input of the load over a second circuit path. The controller controls connectivity of the first circuit path to the second circuit path as a function of the first input voltage and the second input voltage during at least ramp up or ramp down of either or both of the first input voltage and the second input voltage.

A switched-mode power supply for use in an intralogistics system for goods has a housing with a first power output with a first operating voltage for first electrical consumers. The housing of the switched-mode power supply has at least a second power output with a second operating voltage for second electrical consumers. The second operating voltage at the second power output is greater than the first operating voltage at the first power output.

A single-stage battery charging system includes a hybrid converter comprising a plurality of first power switches connected in series, an inductor and a first flying capacitor, wherein the inductor is connected to a midpoint of the plurality of first power switches, a switched capacitor converter comprising a plurality of second power switches connected in series, and a second flying capacitor, and an isolation switch coupled between the midpoint of the plurality of first power switches and a midpoint of the plurality of second power switches.

An electric power conversion system and a vehicle, to improve vehicle availability. The electric power conversion system may receive electric energy provided by a first power supply, and supply power to at least one load module. The system may include a first direct current to direct current conversion module and a second direct current to direct current conversion module. The first direct current to direct current conversion module is configured to perform voltage conversion processing on the electric energy and provide the electric energy to the at least one load module. The second direct current to direct current conversion module is configured to perform voltage conversion processing on the electric energy and provide the electric energy to the at least one load module.

A vehicle-based high-voltage charging circuit is provided with an AC voltage terminal, at least two galvanically isolating DC-DC converters designed as step-up converters and a rectifier via which the DC-DC converters are connected to the AC voltage terminal, and a changeover switch. The charging circuit has a first and a second DC voltage terminal selectably connected to the first DC-DC converter via the changeover switch. The charging circuit has a third DC voltage terminal connected to the second DC-DC converter, wherein the charging circuit also has a controller which is set up, in a first mode, to drive the DC-DC converters according to a first target output voltage which is at least 750 V and at most 1000 V, and, in a second mode, to drive the DC-DC converters according to a second target output voltage which is at most 480 V or at most 450 V.

A system for the electric power supply of a vehicle, wherein the vehicle comprises multiple electricity users, comprises an energy accumulator and a DC/DC converter, wherein the energy accumulator comprises n strands each having at least one energy accumulator cell and the DC/DC converter comprises n input modules, wherein each time one strand of the energy accumulator and one input module of the DC/DC converter form a closed circuit, wherein n circuits are interconnected, and wherein each circuit is connected to the users.

An interface performs power delivery and communication with an external apparatus. A convert device is configured to convert a voltage of input power that is supplied from the external apparatus through the interface. A convert device includes a first convert device having first conversion efficiency and a second convert device having second conversion efficiency different from the first conversion efficiency. A processing device is configured to operate by using power converted by the convert device. A controller is configured to switch a conversion state between: a first conversion state of converting, by the first convert device, the input power supplied from the external apparatus through the interface and supplying the converted input power to the processing device; and a second conversion state of converting, by the second convert device, the input power supplied from the external apparatus through the interface and supplying the converted input power to the processing device.

A storage apparatus includes a control chip, a storage chip, a power interface configured to receive a first voltage, a first variable-voltage circuit. An input end of the first variable-voltage circuit is coupled to the power interface. The first variable-voltage circuit is configured to convert the first voltage into a second voltage, and provide the second voltage to the control chip and a second variable-voltage circuit, where an input end of the second variable-voltage circuit is coupled to the power interface. The second variable-voltage circuit is configured to convert the first voltage into a third voltage and provide the third voltage to the control chip and the storage chip.

An in-vehicle power supply system supplies electric power to a large electric power load and a small electric power load. The in-vehicle power supply system includes a first power supply unit to output electric power having a first voltage higher than a total power supply voltage required by the large and small electric power loads, zone management units to manage predetermined zones on the vehicle, a power supply trunk line unit connecting the first power supply unit and the zone management units and a step-down conversion unit disposed in a zone of one zone management unit of the zone management units and to convert the electric power having the first voltage into electric power having a second voltage lower than the first voltage. The power supply trunk line unit includes a high-voltage power supply line to distribute the electric power having the first voltage.