An integrated module of an OBC and an inverter includes: an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, the 3-phase AC voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.

A voltage source converter has director valve phase legs in parallel with waveshaper phase legs between two DC terminals. The director valve and waveshaper phase legs include upper and lower phase arms alternately operated to form waveshapes on AC terminals of the converter, thereby allowing a number of waveshaper phase arms to be available for use for other purposes. At least one of the available phase arms is controlled to contribute to other aspects of converter operation than waveshaping.

The present invention discloses a calculation method for a converter valve state and a valve current based on temporal features of a valve side current, the process is follows: collecting three-phase AC currents, DC currents on a valve side of a converter of a DC transmission system, and trigger pulses of converter valves; establishing a node current equation of the AC currents and valve currents; when detecting a rising edge of a trigger pulse of a converter valve, latching the number of the converter valve; according to the trigger pulses of the converter valves, and amplitude characteristics of the AC currents and characteristics of AC variations, to perform a conducting state and a blocking state judgment of valve states, and obtaining valve states; judging whether each phase has a bypass state; through summing the valve bypass states of the three phases to judge a number of bypass phases; supplementing bypass loop voltage equation; calculating the converter valve currents; when the calculated value of the valve currents is negative, the valve state is corrected to blocking state according to a one-way conductivity of the converter valves, otherwise do not correct; repeating the above steps again to calculate the valve current.

An AC/DC converter including: an H bridge; an inductance in series with an input of the bridge; an inductance in series with an output of the bridge; and a circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second complementary configuration, the circuit being capable, during a phase of transition between the first and second configurations, of: turning on a first switch of the second diagonal; turning off a first switch of the first diagonal when the current flowing through this switch takes a zero value; turning on the second switch of the second diagonal; and turning off the second switch of the first diagonal when the current flowing through this switch takes a zero value.

Aspects of the subject disclosure may include, for example, a power receiving unit that includes a first wireless power receiver configured to receive a first wireless power signal in accordance with a first wireless power standard and a second wireless power receiver configured to receive a second wireless power signal in accordance with a second wireless power standard. A controllable rectifier circuit is configured to rectify either the first wireless power signal or the second wireless power signal. The controllable rectifier circuit includes a rectifier circuit configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to determine whether the first wireless power signal or the second wireless power signal is received and to generate the switch control signals, based on whether the first wireless power signal or the second wireless power signal is received.

A gate driving circuit for an insulated gate-type power semiconductor element includes an Nch MOSFET which turns on the insulated gate-type power semiconductor element, a Pch MOSFET which turns off the insulated gate-type power semiconductor element, a control circuit which turns on the Nch MOSFET by applying a positive voltage to the gate electrode of the Nch MOSFET, and which turns on the Pch MOSFET by applying a negative voltage to the gate electrode of the Pch MOSFET, and a power supply which applies a negative voltage to the drain electrode of the Pch MOSFET and to a negative-side electrode of the control circuit, which applies a positive voltage to the drain electrode of the Nch MOSFET, and which applies to a positive-side electrode of the control circuit a positive voltage whose absolute value is larger than absolute value of the positive voltage applied to the drain electrode of the Nch MOSFET.

A controller for use in a power converter includes a current sense circuit to generate a current limit signal and an overcurrent signal in response to a source signal, a first sense finger signal, and a second sense finger signal. A control circuit is coupled to generate a control signal in response to the current limit signal and the overcurrent limit signal. A drive circuit is coupled to generate a drive signal with a multiple stage gate drive in response to the control signal. The drive signal in a first stage of the multiple stage gate drive is a weak turn on drive signal to turn a switch on slowly to reduce electromagnetic interference (EMI). The drive signal in a second stage of the multiple stage gate drive is a strong turn on drive signal to fully turn on the switch quickly to enable accurate current sensing of the switch.

A voltage source converter has director valve phase legs in parallel with waveshaper phase legs between two DC terminals. The director valve and waveshaper phase legs include upper and lower phase arms alternately operated to form waveshapes on AC terminals of the converter, thereby allowing a number of waveshaper phase arms to be available for use for other purposes. At least one of the available phase arms is controlled to contribute to other aspects of converter operation than waveshaping.

A linear motor comprises a stator, the stator comprising multiple drive coils and an intermediate circuit electrically conductively connected to each drive coil, the intermediate circuit being configured to exchange energy with each drive coil. The drive coils are arranged along the running rail, where at least one slide comprising a magnet acting as a rotor of the linear motor is movably arranged on the running rail. A controller is configured to independently control each drive coil, so that electrical energy is fed from the intermediate circuit into the drive coils, if a measured intermediate circuit voltage is greater or equal to a predetermined intermediate circuit voltage threshold value, where those drive coils are excluded from the feed-in of the electrical energy which are instantaneously being used for driving or braking the at least one slide and/or have a thermal load which exceeds a predetermined thermal load threshold value.

A power converting system that includes: a rectifier configured to convert an input voltage into a output voltage and including an output node that is coupled to floating ground; a radio frequency (RF) power amplifier coupled to the rectifier and configured to generate a load voltage based on an RF clock and the output voltage; a detector coupled to the RF power amplifier and configured to detect the load voltage of the RF power amplifier; an integrator coupled to the detector and configured to generate a direct current (DC) voltage based on the detected load voltage; and a controller coupled to the integrator and configured to, based on the DC voltage, generate a control signal to adjust one or more features of the RF power amplifier is disclosed.