| US 7,579,782 B2 | ||
| Circuitry for portable lighting devices and portable rechargeable electronic devices | ||
| Stacey H. West, Upland, Calif. (US) | ||
| Assigned to Mag Instrument, Inc., Ontario, Calif. (US) | ||
| Filed on Dec. 07, 2004, as Appl. No. 11/7,771. | ||
| Prior Publication US 2006/0120069 A1, Jun. 08, 2006 | ||
| Int. Cl. H05B 37/00 (2006.01) | ||
| U.S. Cl. 315—200A [315/224; 315/291] | 22 Claims |
| 1. A portable lighting device comprising:
a main power circuit including a power source, a light source, and an electronic power switch;
a power control circuit electrically coupled to the electronic power switch and adapted to regulate current flow through the
electronic power switch in response to a control signal, wherein the power control circuit regulates the electronic power
switch when the portable lighting device is turned on to limit the peak current that flows through the main power circuit
prior to the main power circuit reaching a steady state; and
a microprocessor and a mechanical switch for opening and closing an electrical path between the power source and the microprocessor,
wherein an output of the microprocessor is coupled to the power control circuit, the microprocessor provides the control signal
to the power control circuit in response to an activation signal received from the mechanical switch, and the power control
circuit modifies the control signal and applies the modified control signal to the electronic power switch.
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