Boosting circuit with high voltage generated at high speed
OwnerMasayoshi Hiratainventor
Life of this patent
Estimating the term…
Abstract
A boosting circuit for supplying a boosted voltage to an external capacitor, includes a plurality of capacitors, a charging section and a connection control section. The charging section charges each of the plurality of capacitors to a power supply voltage in a charging mode. The connection control section connects, in the boosting mode, the plurality of capacitors in series while a first one of the plurality of charged capacitors is biased by the power supply voltage such that the external capacitor is charged by the plurality of capacitors connected in series.
Claims15
A boosting circuit for supplying a boosted voltage to an external capacitor, comprising:
- a plurality of capacitors;
- a charging section charging each of said plurality of capacitors to a power supply voltage in a charging mode;
- and
- a connection control section connecting, in said boosting mode, said plurality of capacitors in series while a first one of said plurality of charged capacitors is biased by said power supply voltage such that said external capacitor is charged by said plurality of capacitors connected in series.
A method of supplying a boosted voltage to an external capacitor, comprising:
- alternately setting a charging mode and a boosting mode for every period of a clock signal;
- charging each of a plurality of capacitors to a power supply voltage in said charging mode;
- and
- connecting said plurality of capacitors in series in said boosting mode such that said boosted voltage is supplied to said external capacitor.
A boosting circuit for supplying a boosted voltage to an external capacitor, comprising:
- a primary boosting section including a first capacitor, wherein said primary boosting section charges said first capacitor to a power supply voltage in a charging mode, and biases said first capacitor by said power supply voltage in a boosting mode;
- and
- a plurality of secondary boosting sections, each of said plurality of secondary boosting sections connects one end of said second capacitor to said ground potential level in said charging mode and connects said one end of said second capacitor to the other end of said second capacitor of said secondary boosting section of a previous stage in said boosting mode.
Dependencies are inferred from the claim text.