Method and device tolerant to direct current source fluctuation for pulse charging a battery
First Claim
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1. A method for charging a battery from a direct-current source liable to significant fluctuations, comprising the repetitive steps of:
- converting the DC voltage from said direct-current source into a DC voltage which is higher than the voltage of said battery,applying said higher DC voltage to the terminals of a storage capacitor, so as to transfer energy into said storage capacitor,detecting a predetermined voltage threshold over the terminals of said storage capacitor, andupon detection of said voltage threshold, connecting said storage capacitor to said battery during a predetermined time, so as to transfer energy of a discharge pulse with predetermined energy from said storage capacitor into said battery.
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Abstract
A method for charging a battery (16) from a direct-current source liable to significant fluctuations, which includes the steps of:
- progressively charging a storage capacitor (14) at a voltage that is higher than the nominal voltage of the battery (16),
- detecting a predetermined voltage threshold over the terminals of the storage capacitor (14), and
- discharging the storage capacitor (14) into the battery (16), the discharging being controlled by the threshold detection.
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Citations
10 Claims
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1. A method for charging a battery from a direct-current source liable to significant fluctuations, comprising the repetitive steps of:
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converting the DC voltage from said direct-current source into a DC voltage which is higher than the voltage of said battery, applying said higher DC voltage to the terminals of a storage capacitor, so as to transfer energy into said storage capacitor, detecting a predetermined voltage threshold over the terminals of said storage capacitor, and upon detection of said voltage threshold, connecting said storage capacitor to said battery during a predetermined time, so as to transfer energy of a discharge pulse with predetermined energy from said storage capacitor into said battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification