ELECTRIC OUTLET FOR COMPUTER AND RELATED COMPUTER PERIPHERALS
First Claim
Patent Images
1. An electric outlet comprising:
- a power cable having a live wire and a naught wire;
a first socket having two terminals respectively connected to corresponding wires of the power cable; and
at least one second socket having two terminals one connected to the naught wire and the other one connected to the live wire of the power cable via a control circuit, wherein the control circuit detects an output power of the first socket and turns off the at least one second socket when the output power of the first socket drops below a threshold value, the control circuit comprises;
a sampling circuit for sampling the output power of the first electric outlet to generate a voltage sample;
a first rectification circuit having two input terminals connected to two terminals of the sampling circuit respectively for receiving the voltage sample, and two output terminals connected to each other via a first resister to provide a rectified voltage;
an electric switch having a first terminal connected to an end of the first resister, a second terminal connected to another end of the first resister, and a third terminal, the electric switch being turned on when the rectified voltage rises above a turnover threshold value of the electric switch; and
a relay-switch with two relay leads and two switch leads, one of the relay leads being connected to a power source, the other one of the relay leads being connected to the third terminal of the electric switch, one of the switch leads being connected to the live wire of the power cable, and the other one of the switch leads being connected to the other one of the terminals of the at least one second socket.
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Accused Products
Abstract
An exemplary electric outlet includes a power cable having a live wire and a naught wire; a first socket connected to the power cable; and at least one second socket connected to the power cable via an electric switch. The electric switch turn off the at least one second socket when a power of the first socket drops below its threshold value.
7 Citations
16 Claims
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1. An electric outlet comprising:
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a power cable having a live wire and a naught wire; a first socket having two terminals respectively connected to corresponding wires of the power cable; and at least one second socket having two terminals one connected to the naught wire and the other one connected to the live wire of the power cable via a control circuit, wherein the control circuit detects an output power of the first socket and turns off the at least one second socket when the output power of the first socket drops below a threshold value, the control circuit comprises; a sampling circuit for sampling the output power of the first electric outlet to generate a voltage sample; a first rectification circuit having two input terminals connected to two terminals of the sampling circuit respectively for receiving the voltage sample, and two output terminals connected to each other via a first resister to provide a rectified voltage; an electric switch having a first terminal connected to an end of the first resister, a second terminal connected to another end of the first resister, and a third terminal, the electric switch being turned on when the rectified voltage rises above a turnover threshold value of the electric switch; and a relay-switch with two relay leads and two switch leads, one of the relay leads being connected to a power source, the other one of the relay leads being connected to the third terminal of the electric switch, one of the switch leads being connected to the live wire of the power cable, and the other one of the switch leads being connected to the other one of the terminals of the at least one second socket. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electric outlet comprising:
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a power cable having a live wire and a naught wire; a first socket having two terminals connected to corresponding wires of the power cable respectively; at least one second socket having two terminals connected to corresponding wires of the power cable via an electric switch which has a turnover threshold value; a sampling circuit configured to generate a voltage sample based on an output power of the first electric socket; and a first rectification circuit for receiving the voltage sample to provide a rectified voltage to the electric switch, so as to turn on or off the at least one second socket. - View Dependent Claims (9, 10, 11)
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12. An electric outlet comprising:
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a power cable having a live wire and a naught wire; a first socket having two terminals connected to the respective wires of the power cable; and at least one second socket having two terminals one connected to the naught wire and the other one connected to the live wire via a relay-switch; a sampling circuit configured to sample an output power of the first electric outlet to generate a corresponding voltage sample; a first rectification circuit having two input terminals connected to two terminals of the sampling circuit respectively for receiving the voltage sample, and two output terminals connected to each other via a dividing circuit which has an output terminal to provide a divided rectified voltage; an electric switch with a turnover threshold value, the electric switch having a control terminal connected to the output terminal of the dividing circuit, and an output terminal connected to the relay-switch for controlling conduction thereof, the electric switch being turned off to turn off the relay-switch when the output power of the first electric socket drops below a threshold value which results in the divided rectified voltage being less than the turnover threshold value of the electric switch. - View Dependent Claims (13, 14, 15, 16)
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Specification