A power electronics assembly for a power generation system includes a housing and an attenuator card positioned within the housing. The attenuator card may include at least one printed circuit board for a high-voltage attenuator circuit. The power electronics assembly also includes a potting material at least partially filling the housing on one or more sides of the attenuator card, a detachable end cap positioned at a first end of the housing, and multi-phase wiring communicatively coupled to the high-voltage attenuator circuit through the end cap.

An electrical configuration contains at least one submodule which has a first and a second outer electrical terminal. The configuration further has a bypass switching device, which is electrically connected between the first and second terminals and in the on-state causes an electrical short-circuit in at least one current flow direction between the two outer terminals. The bypass switching device has a thyristor with an anode terminal, a cathode terminal and a trigger terminal and is connected by its anode terminal to one of the two outer terminals and by its cathode terminal to the other of the two outer terminals. A triggering device is connected to the trigger terminal of the thyristor for triggering the thyristor, and a switch is provided which in the on-state connects the anode terminal of the thyristor to the trigger terminal of the thyristor.

A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.

In the field of gate drivers there is provided a regulated voltage source (10; 10A, 10B), for a gate driver (200; 300) of a switching device (18) having a gate terminal (26) via which the switching device (18) can at least be turned on. The regulated voltage source (10; 10A, 10B) comprises an input terminal (12) via which the regulated voltage source (10; 10A, 10B) in use receives current. The regulated voltage source (10; 10A, 10B) also includes first and second connection terminals (22, 24) via at least one of which the regulated voltage source (10; 10A, 10B) in use applies a voltage (V) to a gate terminal (26) of a switching device (18). In addition the regulated voltage source (10; 10A, 10B) includes a regulated energy storage stage (28) which is electrically connected between the input and output terminals (12, 22, 24) and which includes a primary energy storage device (30; 30A, 30B) connected in parallel with a storage limiter (34) to limit the amount of energy stored in the primary energy storage device (30; 30A, 30B). Between the primary energy storage device (30; 30A, 30B) and the storage limiter (34) lies an energy retainer (46) to prevent the escape of energy from the primary energy storage device (30; 30A, 30B) via the storage limiter (34). The regulated voltage source (10; 10A, 10B) further includes a freewheel diode (50) that is arranged in parallel with the energy storage stage (28) and a secondary energy storage device (52; 52A, 52B) which is arranged in parallel with each of the freewheel diode (50) and the energy storage stage (28).

In the field of gate drivers there is provided a regulated voltage source (10; 10A, 10B), for a gate driver (200; 300) of a switching device (18) having a gate terminal (26) via which the switching device (18) can at least be turned on. The regulated voltage source (10; 10A, 10B) comprises an input terminal (12) via which the regulated voltage source (10; 10A, 10B) in use receives current. The regulated voltage source (10; 10A, 10B) also includes first and second connection terminals (22, 24) via at least one of which the regulated voltage source (10; 10A, 10B) in use applies a voltage (V) to a gate terminal (26) of a switching device (18). In addition the regulated voltage source (10; 10A, 10B) includes a regulated energy storage stage (28) which is electrically connected between the input and output terminals (12, 22, 24) and which includes a primary energy storage device (30; 30A, 30B) connected in parallel with a storage limiter (34) to limit the amount of energy stored in the primary energy storage device (30; 30A, 30B). Between the primary energy storage device (30; 30A, 30B) and the storage limiter (34) lies an energy retainer (46) to prevent the escape of energy from the primary energy storage device (30; 30A, 30B) via the storage limiter (34). The regulated voltage source (10; 10A, 10B) further includes a freewheel diode (50) that is arranged in parallel with the energy storage stage (28) and a secondary energy storage device (52; 52A, 52B) which is arranged in parallel with each of the freewheel diode (50) and the energy storage stage (28).

An electrical configuration contains at least one submodule which has a first and a second outer electrical terminal. The configuration further has a bypass switching device, which is electrically connected between the first and second terminals and in the on-state causes an electrical short-circuit in at least one current flow direction between the two outer terminals. The bypass switching device has a thyristor with an anode terminal, a cathode terminal and a trigger terminal and is connected by its anode terminal to one of the two outer terminals and by its cathode terminal to the other of the two outer terminals. A triggering device is connected to the trigger terminal of the thyristor for triggering the thyristor, and a switch is provided which in the on-state connects the anode terminal of the thyristor to the trigger terminal of the thyristor.

A power conversion device includes: semiconductor switching elements; a housing on which the semiconductor switching elements are fixed; a circuit board on which a driving circuit for driving the semiconductor switching elements is mounted and which is located opposite to and spaced apart from a fixing surface; insertion guides which are disposed on an opposing surface of the circuit board relative to the fixing surface; and elongated terminal extension members each having a length that is matched with a height of a pulse transformer, one ends of which are bonded to respective lead terminals, and the other ends of which extend toward the insertion guides; wherein the pulse transformer is disposed on the opposing surface so as to be opposite to major surfaces of the semiconductor switching elements.

A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.

The present disclosure relates to a multi-voltage driving control method, apparatus, and device, and a computer-readable storage medium. The multi-voltage driving control method includes the following steps: obtaining a voltage sample of a mains supply, and determining a voltage region corresponding to the voltage sample; determining a driving circuit corresponding to the voltage region according to the voltage region and a default working voltage region; and controlling an electrical appliance to operate by the driving circuit. According to the multi-voltage driving control method provided by the present disclosure, a working voltage range of a mains supply is determined by detecting the mains supply in an electricity use environment; a working state of a circuit is dynamically adjusted according to a change of an input voltage of an electrical appliance, thereby achieving stable work of the electrical appliance in a multi-voltage environment.