Booster device
AssigneeYazaki Corporation
InventorsShunzou OHSHIMA, Hiroko AONO
Life of this patent
Estimating the term…
Abstract
A booster device for increasing a voltage at a voltage supply point of a power supply circuit for supplying a driving voltage to an electronic control circuit is provided. The power supply circuit includes a series-connected circuit having a diode, a resistor, and a capacitor which is connected to a DC power supply. One end of the capacitor is connected to a ground and a connection point of the resistor and the capacitor serves as the voltage supply point. The booster device includes a clamp circuit, an oscillation circuit, and a booster circuit that increase a voltage output from the DC power supply. When the voltage at the voltage supply point falls below a predetermined threshold voltage, the booster device supplies the increased voltage at the voltage supply point.
Claims6
A booster device for increasing a voltage at a voltage supply point of a power supply circuit for supplying a driving voltage to an electronic control circuit, the power supply circuit including a series-connected circuit having a diode, a resistor, and a capacitor, wherein the series-connected circuit is connected to a DC power supply, and wherein one end of the capacitor is connected to a ground and a connection point of the resistor and the capacitor serves as the voltage supply point,
- the booster device comprising:
- a booster circuit that increases a voltage output from the DC power supply and supplies the voltage to the voltage supply point,
- wherein, when the voltage at the voltage supply point falls below a predetermined threshold voltage, the booster circuit increases the voltage at the voltage supply point.
A booster device for increasing a voltage at a voltage supply point of a power supply circuit for supplying a driving voltage to an electronic control circuit, the power supply circuit including a first series-connected circuit having a diode, a resistor, and a capacitor which is connected to a DC power supply, wherein one end of the capacitor is connected to a ground and a connection point of the resistor and the capacitor serves as the voltage supply point,
- the booster device comprising:
- a clamp circuit that outputs a drive disabling signal when the voltage at the voltage supply point is equal to or greater than a predetermined threshold voltage, and outputs a drive enabling signal, which is generated by inverting the drive disabling signal, when the voltage at the voltage supply point is smaller than the threshold voltage;
- an oscillation circuit that outputs a pulse signal when the drive enabling signal is output from the clamp circuit;
- and
- a booster circuit that increases the voltage at the voltage supply point by supplying electric charges, which are accumulated by a voltage output from the DC power supply, to the voltage supply point when the pulse signal is output from the oscillation circuit.
Dependencies are inferred from the claim text.