McDermott Will & Emery LLP
Switching power supply apparatus
A switching power supply apparatus of the present disclosure is a device connection state detection circuit that detects a connection state in a load device connection terminal in a power supply system having the load device connection terminal. The device connection state detection circuit includes a transformer, a switching element, a pulse generator, and a waveform detection circuit. The waveform detection circuit detects a voltage or a current generated in a primary winding wire or a secondary winding wire of the transformer in accordance with operation of a pulse signal, compares the detected voltage or current with a preset reference value, and outputs an output signal in accordance with a comparison result, to an OFF terminal.
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
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Y02B H02M H02M
additional additional inventional
Yoshihiro Naohiko Koji Kazuhiro Keita Tatsuya Takashi
Mori Morota Suzuki Murata Kawabe Sakurai Saji