Back to results
US 2004/0070374 A1Published application
Switching regulator circuit
AssigneeKoito Manufacturing Co., Ltd.
InventorsMasayasu Ito, Hitoshi Takeda, Kentaro Murakami
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeKoito Manufacturing Co., Ltd.
InventorsMasayasu Ito, Hitoshi Takeda, Kentaro Murakami
Estimating the term…
A switching regulator circuit for supplying two input potentials to a passive device that is driven by a potential difference between the two input potentials irrespective of potential differences between the two input potentials and a ground potential, includes: a low-voltage input terminal for receiving a lower input potential that is lower one of the two input potentials; a coil provided between the low-voltage input terminal and the passive device in series; and a switching device, provided between the low-voltage input terminal and the passive device to be in series with the coil, for making the coil generate a potential higher than the lower input voltage by repeatedly switching whether or not a current is allowed to flow in the coil, so as to supply the generated potential to the passive device.
A switching regulator circuit for supplying two input potentials to a passive device that is driven by a potential difference between said two input potentials irrespective of potential differences between said two input potentials and a ground potential, comprising:
Dependencies are inferred from the claim text.