Output power protection apparatus and method of operating the same
First Claim
1. An output power protection apparatus comprising:
- a DC conversion unit configured to convert an input DC power into an output DC power;
an output protection unit connected in series to the DC conversion unit, and having a plurality of protection circuits connected in parallel to each other;
a high-voltage battery being charged by the input DC power;
a low-voltage battery connected between the DC conversion unit, the output protection unit, and a low-voltage device, and being charged by the output DC power; and
a control unit;
wherein the control unit is configured to generate a control signal to control the protection circuits to disconnect the connection between the low-voltage battery and the low-voltage device, and the DC conversion unit when a short-circuit condition occurs between the high-voltage battery and the low-voltage battery or the low-voltage battery is reversely connected in polarity.
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Accused Products
Abstract
An output power protection apparatus includes a DC conversion unit, an output protection unit, a high-voltage battery, a low-voltage battery, and a control unit. The DC conversion unit converts an input DC power into an output DC power. The output protection unit is connected in series to the DC conversion unit, and the output protection unit has a plurality of protection circuits connected in parallel to each other. When a short-circuit condition occurs between the high-voltage battery and the low-voltage battery or the low-voltage battery is reversely connected in polarity, the control unit generates a control signal to control the protection circuits to disconnect the connection between the low-voltage battery and a low-voltage device, and the DC conversion unit.
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Citations
20 Claims
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1. An output power protection apparatus comprising:
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a DC conversion unit configured to convert an input DC power into an output DC power; an output protection unit connected in series to the DC conversion unit, and having a plurality of protection circuits connected in parallel to each other; a high-voltage battery being charged by the input DC power; a low-voltage battery connected between the DC conversion unit, the output protection unit, and a low-voltage device, and being charged by the output DC power; and a control unit; wherein the control unit is configured to generate a control signal to control the protection circuits to disconnect the connection between the low-voltage battery and the low-voltage device, and the DC conversion unit when a short-circuit condition occurs between the high-voltage battery and the low-voltage battery or the low-voltage battery is reversely connected in polarity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating an output power protection apparatus comprising following steps:
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(a) providing a DC conversion unit, the DC conversion unit configured to convert an input DC power into an output DC power; (b) providing an output protection unit, the output protection unit connected in series to the DC conversion unit, and having a plurality of protection circuits connected in parallel to each other; (c) providing a high-voltage battery and a low-voltage battery, the high-voltage battery being charged by the input DC power, and the low-voltage battery connected between the DC conversion unit, the output protection unit, and a low-voltage device, and being charged by the output DC power; (d) providing a control unit; and (e) generating a control signal by the control unit to control the protection circuits to disconnect the connection between the low-voltage battery and the low-voltage device, and the DC conversion unit when a short-circuit condition occurs between the high-voltage battery and the low-voltage battery or the low-voltage battery is reversely connected in polarity. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification