Solar charger comprising a charging unit for charging a power battery to a high voltage, a photo-sensitive unit for detecting light intensity, a switch unit for regulating connection between the charging unit and the power battery, and a control unit for regulating the charging of the power battery based on a saturation level and the light intensity
First Claim
1. A solar charger for charging a power battery, comprising:
- a photo-sensitive unit configured to detect light intensity;
a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage for charging the power battery;
a switch unit coupled between the charging unit and the power battery, and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; and
a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery,wherein the control unit is further configured to monitor a voltage of the power battery during charging of the power battery by sampling at the output end of the solar charger, and to switch off the charging unit and the switch unit when the voltage of the power battery reaches a saturation value,wherein the control unit is further configured to periodically switch on the switch unit at regular intervals to detect a current voltage of the power battery after the voltage of the power battery reaches a saturation value, and to switch on the charging unit and the switch unit to charge the power battery when the current voltage of the power battery is lower than the saturation value and the light intensity detected by the photo-sensitive unit is higher than the first predetermined value.
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Accused Products
Abstract
A solar charger for charging a power battery is provided, comprising: a photo-sensitive unit configured to detect light intensity; a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage for charging the power battery; a switch unit coupled between the charging unit and the power battery and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; and a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery.
117 Citations
19 Claims
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1. A solar charger for charging a power battery, comprising:
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a photo-sensitive unit configured to detect light intensity; a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage for charging the power battery; a switch unit coupled between the charging unit and the power battery, and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; and a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery, wherein the control unit is further configured to monitor a voltage of the power battery during charging of the power battery by sampling at the output end of the solar charger, and to switch off the charging unit and the switch unit when the voltage of the power battery reaches a saturation value, wherein the control unit is further configured to periodically switch on the switch unit at regular intervals to detect a current voltage of the power battery after the voltage of the power battery reaches a saturation value, and to switch on the charging unit and the switch unit to charge the power battery when the current voltage of the power battery is lower than the saturation value and the light intensity detected by the photo-sensitive unit is higher than the first predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A solar charger for charging a power battery, comprising:
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a photo-sensitive unit configured to detect light intensity; a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage for charging the power battery; a switch unit coupled between the charging unit and the power battery, and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery, and a power supply unit coupled to the control unit, and configured to receive and stabilize the voltage transformed from the solar energy to power the control unit, wherein the control unit operates when the voltage transformed from the solar energy reaches a second predetermined value no less than 80 V, and wherein the control unit is further configured to monitor a voltage of the power battery during charging of the power battery, and to switch off the charging unit and the switch unit when the voltage of the power battery reaches a saturation value, wherein the control unit is further configured to periodically switch on the switch unit at regular intervals to detect a current voltage of the power battery after the voltage of the power battery reaches a saturation value, and to switch on the charging unit and the switch unit to charge the power battery when the current voltage of the power battery is lower than the saturation value and the light intensity detected by the photo-sensitive unit is higher than the first predetermined value.
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19. A solar charger for charging a power battery, comprising:
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a photo-sensitive unit configured to detect light intensity; a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage from no less than 80 V up to 570 V for charging the power battery; a switch unit coupled between the charging unit and the power battery, and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; and a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery, wherein the control unit is further configured to monitor a voltage of the power battery during charging of the power battery, and to switch off the charging unit and the switch unit when the voltage of the power battery reaches a saturation value, wherein the control unit is further configured to periodically switch on the switch unit at regular intervals to detect a current voltage of the power battery after the voltage of the power battery reaches a saturation value, and to switch on the charging unit and the switch unit to charge the power battery when the current voltage of the power battery is lower than the saturation value and the light intensity detected by the photo-sensitive unit is higher than the first predetermined value.
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Specification