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.

A detection device for detecting a line quality of an electric circuit includes two electrical connection members inserted into a socket and connected to two power lines, a load resistor, a switching member, a displaying module, and a control module. An end of the load resistor is connected to one of the electrical connection members, and another end thereof is connected to a first end of the switching member. A second end of the switching member is connected to the other electrical connection member. The control module controls the switching member to cut off when in a detection mode, and detects a peak voltage in a voltage waveform and records as a maximum open-circuit voltage, and controls the switching member to conduct and detects the peak voltage of the voltage waveform and records as a load voltage and calculates a load current. A line resistance value is calculated based on the maximum open-circuit voltage, the load voltage, and the load current. A message is correspondingly displayed via the displaying module.

A method and a voltage converter assembly for supplying energy to at least one electrical vehicle module. The assembly includes at least one voltage converter that is designed to convert an input voltage, provided by at least one supply source, into at least one predefinable output voltage, which is applied to the at least one vehicle module, a voltage monitor that is designed to detect the input voltage, and an evaluation and control unit that is designed to carry out the method for supplying energy to at least one electrical vehicle module. The supply source is loaded with a predefinable current level when the input voltage that is present exceeds a predefinable setpoint voltage value, the input voltage being converted into at least one output voltage if the input voltage remains above the predefinable setpoint voltage value despite the load on the supply source.

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.

Circuits and methods for reducing lagging responses of a power converter to changes in circuit voltages or current, over-shoot/under-shoot when a target output voltage changes faster than the power converter's response, and open loop conditions. Embodiments include scanning a feedback voltage from a load powered by a voltage output by a power converter controlled by a PWM control signal; detecting an under-regulation condition; and, while the under-regulation condition is detected, increasing a clock signal rate to a counter outputting a count value usable to generate the PWM control signal. Embodiments include comparing a target output voltage to a signal representative of an output voltage of the power converter; indicating an under-shoot or over-shoot condition if the voltage difference exceeds a corresponding offset value; and limiting the range of values for an M-bit count value used to generate the PWM control signal to mitigate the under-shoot or over-shoot condition.

A synchronous rectifier includes: an integrator configured to integrate a voltage across a secondary side winding of a transformer over an integral period having an expected zero integral value; a first comparator configured to detect an end of a demagnetization phase of the secondary side winding based on diode detection; and a digital circuit configured to adjust a channel gain of the synchronous rectifier based on an integration error at the end of the integral period, the integration error corresponding to the difference between the integrated voltage at the end of the integral period and the expected zero integral. Corresponding methods of gain tuning and a power converter are also described.

The invention relates to a system 1 for controlling a voltage converter comprising a plurality of high-side switches forming a high group and a plurality of low-side switches forming a low group, the control system 1 comprising: a module 10 for measuring a voltage V of the DC voltage source B, a module 11 for comparing the measured voltage V with a first safety threshold OV1, a control module 12 for controlling a first group of switches so as to close chosen from the high group or the low group, if the comparison module 11 indicates that the measured voltage V is higher than the first safety threshold OV1.

The present invention relates to a method for diagnosing the state of the capacitor in a modular converter. The method for diagnosing the state of the capacitor in a modular converter includes determining a FIT table depending on the input voltage and temperature of an internal capacitor for multiple sample modular converters; detecting, by an input voltage detection unit, the input voltage of the capacitor in a target modular converter, the state of the capacitor of which is to be diagnosed, during a preset period; detecting, by a temperature detection unit, the temperature of the capacitor of the target modular converter during the preset period; calculating the cumulative mean for the input voltage and the temperature, which are respectively detected by the input voltage detection unit and the temperature detection unit during the preset period; and selecting, by a control unit, a FIT value corresponding to the cumulative mean of the input voltage and the temperature, from the FIT table; and extracting the MTBF of the capacitor from the FIT table.

A method and a gateway system of a mobile asset are described. A voltage produced by a power system of the mobile asset is monitored by a gateway system. In response to determining that a first fluctuation occurs in the voltage produced by the power system of the mobile asset over a first interval of time, the gateway system operates in a first mode. In response to determining that a value of the voltage produced by the power system of the mobile asset is less than a voltage threshold, the gateway system automatically transitions to operating in a second mode, which is different from the first mode and causes the gateway system to consume less power than when it is operating in the first mode.

A method and a gateway system of a mobile asset are described. A voltage produced by a power system of the mobile asset is monitored by a gateway system. In response to determining that a first fluctuation occurs in the voltage produced by the power system of the mobile asset over a first interval of time, the gateway system operates in a first mode. In response to determining that a value of the voltage produced by the power system of the mobile asset is less than a voltage threshold, the gateway system automatically transitions to operating in a second mode, which is different from the first mode and causes the gateway system to consume less power than when it is operating in the first mode.