Power supply apparatus for an electrical appliance
AssigneeSTMicroelectronics S.r.l.
InventorsRoberto Larosa, Giulio Zoppi, Natale Aiello
Life of this patent
Estimating the term…
Abstract
A power supply apparatus includes a power supply circuit and a power-on circuit. The power-on circuit detects a remotely transmitted control signal and causes a transition of the power supply circuit to a turned on state. The power-on circuit includes a transducer configured to provide a power-on signal in response to the remote control signal. The transducer triggers transition to the turned on state through a switch driven by the power-on signal output from the transducer and arranged to supply a power supply circuit enable signal. A DC blocking capacitor is connected between an output of the transducer and a control terminal of the switch.
Claims16
A power supply apparatus for an electrical appliance, comprising:
- a power supply circuit;
- a power-on circuit of the power supply circuit, said power-on circuit configured to determine a transition from a turned off state, wherein said power supply circuit is off and does not supply electric power, to a turned on state of said power supply circuit;
- said power-on circuit comprising a transducer of a remote-controlled type configured to provide a power-on signal to trigger said transition in response to a reception of a wireless signal;
- said power-on circuit further comprising a switch arranged in an electric path between an external DC supply line and an output terminal of the power-on circuit, said switch being driven by the transducer, and further comprising a capacitor arranged between an output terminal of the transducer and a control terminal of the switch and configured so that the switch is not DC coupled with the transducer.
A power supply apparatus, comprising:
- a power supply circuit;
- a power-on circuit configured to control transitioning of the power supply circuit from a turned off state to a turned on state;
- said power-on circuit comprising:
- a transducer of a remote-controlled type configured to provide an enable signal triggering transitioning of said power supply circuit in response to a detection of a wireless control signal;
- a transistor switch having a control terminal coupled to receive the enable signal and having a conduction terminal configured to generate a signal control transitioning of the power supply circuit;
- a capacitor coupled between an output of the transducer and the control terminal of the transistor switch.
Dependencies are inferred from the claim text.