Momentarily enabled electronic device
First Claim
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1. A method for supplying power to a device, comprising the operations of:
- closing a contact;
in response to closing the contact, activating a power converter;
in response to activating the power converter, supplying an output voltage;
raising a voltage of a node above a shutdown voltage, wherein raising the voltage of the node charges a capacitor connected to the node; and
maintaining the output voltage so long as the node voltage exceeds the shutdown voltage.
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Abstract
A circuit or apparatus for providing intermittent or interruptible power to an electronic device. The circuit may provide power upon user initiation and interrupt that power in response to a user command, fault state, period of inactivity and so forth. As one example, interruptible power may be initially provided to activate or “power up” an electronic device and constant power provided after the initial activation. The initial powering up of the device may be facilitated by closing two contacts. The circuit may continue to provide power after the button is released through a monitoring and/or feedback mechanism.
81 Citations
7 Claims
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1. A method for supplying power to a device, comprising the operations of:
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closing a contact; in response to closing the contact, activating a power converter; in response to activating the power converter, supplying an output voltage; raising a voltage of a node above a shutdown voltage, wherein raising the voltage of the node charges a capacitor connected to the node; and maintaining the output voltage so long as the node voltage exceeds the shutdown voltage. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for supplying power to a device, comprising the operations of:
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closing a contact; in response to closing the contact, activating a power converter; in response to activating the power converter, supplying an output voltage; raising a voltage of a node above a shutdown voltage; maintaining the output voltage so long as the node voltage exceeds the shutdown voltage; opening the contact; closing the contact a second time for at least a minimum time; and after the minimum time, initiating a function associated with the device.
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Specification