Abstract: A power converter to supply power to each phase of a three-phase motor includes a booster circuit connected to a DC power supply to boost an input voltage input from the DC power supply in response to a pulse width modulation boosting signal, an inverter connected to the booster circuit and including a three-phase switching circuit including switches, and an output connected to the three-phase switching circuit to supply power to each phase of the three-phase motor, and a controller to output the pulse width modulation boosting signal to the booster circuit and output the pulse width modulation boosting signal to the booster circuit when detecting that the booster circuit is in a boosted state.

Abstract: A circuit configuration method for improving efficacy of antibacterial lamps, a voltage boost circuit, and an antibacterial lamp are provided. The voltage boost circuit includes a primary side, a first secondary side, and a second secondary side. An electromagnetic induction occurs between the first secondary side and the primary side to generate a first high voltage, and the first secondary side includes a first connecting terminal and a first grounding terminal. The second secondary side is electrically coupled to the first ground terminal, and an electromagnetic induction occurs between the second secondary side and the primary side to generate a second high voltage that is not equal to the first high voltage. The second secondary side includes a second connecting terminal, and the second connecting terminal and the first connecting terminal are configured to be used to connect with a load.

Abstract: A light-emitting diode and method for manufacturing the same are described. The light-emitting diode comprises: a conductive substrate including a first surface and a second surface opposite to the first surface; a reflector structure comprising a conductive reflector layer bonding to the first surface of the conductive substrate and a conductive distributed Bragg reflector (DBR) structure stacked on the conductive reflector layer; an illuminant epitaxial structure disposed on the reflector structure; a first electrode disposed on a portion of the illuminant epitaxial structure; and a second electrode bonded to the second surface of the conductive substrate.