Back to results
US 7,804,194 B2Granted
Device, system and method for charger switch adaptor
AssigneeODO Innovations Ltd.
InventorOfer Zilberberg
Life of this patent
Estimating the term…
Abstract
A system to connect an electrical device to a switch which connects or disconnects the device to the power source, and providing power to the charger and/or another operational circuit of the device, for example, keep-alive circuit, with no dependency in the state of the switch.
Claims32
A system comprising:
- a bypass element associated with a main switch connected to a power supply, said bypass element to provide power having a power characteristic with a first value when the main switch is off and having a second value when the main switch is on;
- a detector circuit to detect whether the main switch is on or off based on the value of the power characteristic;
- and
- an auxiliary switching element to connect a device to the power supply if the main switch is in an on state and to disconnect the device from the power supply if the main switch is in an off state.
1 more element
A switch adaptor comprising:
- a detector circuit to sense the state of a main switch and control activation of at least one device according to the sensed state of said main switch, wherein said sensing is performed according to at least one detected characteristic of a waveform of A/C power through a bypass element bypassing said main switch, wherein said detector circuit is to cause de-activation of said device when said main switch is off.
An emergency device comprising:
- a detector circuit to sense the state of a main switch and control activation of at least one device according to the sensed state of said main switch, wherein said sensing is performed according to at least one detected characteristic of a waveform of A/C power through a bypass element bypassing said main switch, wherein said detector circuit is to cause de-activation of said device when said main switch is off;
- and
- a charger to receive power through said main switch when said main switch is on and through said bypass element when said main switch is off.
Dependencies are inferred from the claim text.