POWER SUPPLY APPARATUS AND CONTROL METHOD THEREOF
First Claim
1. A power supply apparatus, which comprises a load, an outside power source to supply the load with a power voltage and a switch electrically connected between the load and the outside power source, the power supply apparatus further comprising:
- a temperature detector unit configured to detect a temperature of the load;
a no-power contact point unit provided with a relay, which is electrically connected between the load and the switch, and configured to activate a contact point of the relay before the power voltage is applied to the load; and
a control unit configured to turn on the switch according to a power supply command that is input to the control unit from outside the power supply apparatus and configured to control an on/off of the switch according to the detected temperature of the load.
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Accused Products
Abstract
A power supply apparatus, which includes a load, an outside power source to supply the load with a power voltage and a switch electrically connected between the load and the outside power source, including a temperature detector unit configured to detect a temperature of the load, a no-power contact point unit provided with a relay, which is electrically connected between the load and the switch, and configured to activate a contact point of the relay before the power voltage is applied to the load, and a control unit configured to turn on the switch according to a power supply command that is input from an outside and configured to control an on/off of the switch according to the temperature of the load detected.
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Citations
22 Claims
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1. A power supply apparatus, which comprises a load, an outside power source to supply the load with a power voltage and a switch electrically connected between the load and the outside power source, the power supply apparatus further comprising:
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a temperature detector unit configured to detect a temperature of the load; a no-power contact point unit provided with a relay, which is electrically connected between the load and the switch, and configured to activate a contact point of the relay before the power voltage is applied to the load; and a control unit configured to turn on the switch according to a power supply command that is input to the control unit from outside the power supply apparatus and configured to control an on/off of the switch according to the detected temperature of the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of controlling a power supply apparatus, which comprises a load, an outside power source to supply the load with a power voltage, a switch electrically connected between the load and the outside power source, a temperature detector unit configured to detect a temperature of the load, and a no-power contact point unit provided with a relay, which is electrically connected between the load and the switch, the method comprising:
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at the no-power contact point unit, activating a contact point of the relay before the power voltage is applied to the load; at a control unit, turning on the switch according to a power supply command that is input to the control unit from outside the power supply apparatus; at the control unit, controlling an on/off of the switch according to the detected temperature of the load. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A power supply apparatus, comprising:
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a switch electrically connected between a load and an outside power source; a temperature detector configured to detect a temperature of the load; a no-power contact point unit provided with a relay, which is electrically connected between the load and the switch, and configured to activate a contact point of the relay before power is applied to the load; a control unit, receiving a power supply command, configured to turn on the switch in response to the power supply command, and configured to control an on/off of the switch according to the temperature of the load detected; and a comparator unit configured to compare the detected temperature of the load with a reference temperature that is set in advance, wherein the comparator unit outputs a signal to activate the contact point of the relay if the detected temperature of the load is lower than the reference temperature, and the no-power contact point unit activates or inactivates the contact point of the relay according to the output of the comparator unit, and wherein the control unit outputs a signal to inactivate the contact point of the relay according to the detected temperature of the load, and the no-power contact point unit inactivates the contact point of the relay according to at least one of the outputs of the comparator unit and the output of the control unit.
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Specification