Ground detection circuit and method of manufacturing the same
First Claim
1. A system comprising an electronic device, the electronic device comprising:
- an electric power input configured to receive an electric power signal, the electric power input comprising an input line terminal, an input ground terminal, and an input neutral terminal;
a first means for protecting at least one of the system or the electronic device;
a second means for indicating a presence of an electric ground even if the electric ground is at a different electric potential than at least one of the input neutral terminal or an output neutral terminal; and
an electric power output comprising an output line terminal, an output ground terminal, and the output neutral terminal;
wherein;
the electric power input, the first means, the second means, and the electric power output are electrically coupled in series with each other.
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Accused Products
Abstract
In some embodiments, a system including an electronic device. The electronic device includes an electric power input configured to receive an electric power signal and has an input line terminal and an input neutral terminal. In some embodiments, the electric power input can also have an input ground terminal. The electronic device includes a metal oxide varistor protection module configured to protect at least one of the system or the electronic device. The electronic device includes a ground detection module configured to indicate the presence of an electric ground. The electronic device includes an electric power output having an output line terminal and an output neutral terminal. In some embodiments, the electric power output can also have an output ground terminal. The electric power input, the metal oxide varistor protection module, the ground detection module, and the electric power output are electrically coupled in series with each other. Other embodiments are disclosed.
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Citations
25 Claims
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1. A system comprising an electronic device, the electronic device comprising:
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an electric power input configured to receive an electric power signal, the electric power input comprising an input line terminal, an input ground terminal, and an input neutral terminal; a first means for protecting at least one of the system or the electronic device; a second means for indicating a presence of an electric ground even if the electric ground is at a different electric potential than at least one of the input neutral terminal or an output neutral terminal; and an electric power output comprising an output line terminal, an output ground terminal, and the output neutral terminal; wherein; the electric power input, the first means, the second means, and the electric power output are electrically coupled in series with each other. - View Dependent Claims (2, 3)
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4. A system comprising an electronic device, the electronic device comprising:
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an electric power input configured to receive an electric power signal, the electric power input comprising an input line terminal, an input ground terminal, and an input neutral terminal; a metal oxide varistor protection module configured to protect at least one of the system or the electronic device; a ground detection module configured to indicate a presence of an electric ground even if the electric ground is at a different electric potential than at least one of the input neutral terminal or an output neutral terminal; and an electric power output comprising an output line terminal, an output ground terminal, and the output neutral terminal; wherein; the electric power input, the metal oxide varistor protection module, the ground detection module, and the electric power output are electrically coupled in series with each other. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of manufacturing a system, the method comprising:
providing an electronic device, the system comprising the electronic device, wherein providing the electronic device comprises; providing an electric power input configured to receive an electric power signal, the electric power input comprising an input line terminal, an input ground terminal, and an input neutral terminal; providing a metal oxide varistor protection module configured to protect at least one of the system or the electronic device; providing a ground detection module configured to indicate a presence of an electric ground even if the electric ground is at a different electric potential than at least one of the input neutral terminal or an output neutral terminal; providing an electric power output comprising an output line terminal, an output ground terminal, and the output neutral terminal; and coupling electrically in series with each other the electric power input, the metal oxide varistor protection module, the ground detection module, and the electric power output. - View Dependent Claims (24)
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25. A system comprising an electronic device, the electronic device comprising:
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an electric power input configured to receive an electric power signal, the electric power input comprising an input line terminal, an input ground terminal, and an input neutral terminal; a metal oxide varistor protection module configured to protect at least one of the system or the electronic device; a ground detection module configured to indicate a presence of an electric ground; and an electric power output comprising an output line terminal, an output ground terminal, and an output neutral terminal; wherein; the metal oxide varistor protection module comprises; a circuit breaker, a first thermal link, a first fuse, a first metal oxide varistor, a second metal oxide varistor, a second fuse, a second thermal link, a third thermal link, a third fuse, a third metal oxide varistor, and a first crowbar circuit; the ground detection module comprises; a first diode, a first resistive element, a second resistive element, a first transistor, a third resistive element, a light emitting diode, a second transistor, a fourth resistive element, and a second diode; the electronic device further comprises; a first node electrically coupling the input line terminal and the circuit breaker; a second node electrically coupling the circuit breaker and the first thermal link; a third node electrically coupling the first thermal link, the first crowbar circuit, the first fuse, the second metal oxide varistor, the first diode, the second resistive element, the first transistor, the light emitting diode, and the output line terminal; a fourth node electrically coupling the first fuse, the first crowbar circuit, and the first metal oxide varistor; a fifth node electrically coupling the input neutral terminal, the first crowbar circuit, the first metal oxide varistor, the third metal oxide varistor, the second diode, and the output neutral terminal; a sixth node electrically coupling the input ground terminal, the output ground terminal, the second thermal link, the third thermal link, and the first resistive element; a seventh node electrically coupling the second metal oxide varistor and the second fuse; an eighth node electrically coupling the second fuse and the second thermal link; a ninth node electrically coupling the third thermal link and the third fuse; a tenth node electrically coupling the third fuse and the third metal oxide varistor; an eleventh node electrically coupling the first diode, the first resistive element, the second resistive element, and the first transistor; a twelfth node electrically coupling the first transistor, the second transistor, and the third resistive element; a thirteenth node electrically coupling the light emitting diode and the second transistor; a fourteenth node electrically coupling the second transistor and the fourth resistive element; and a fifteenth node electrically coupling the third resistive element, the fourth resistive element, and the second diode; and the first metal oxide varistor, the second metal oxide varistor, the third metal oxide varistor, and the first crowbar circuit are configured for at least one of; a root-mean-squared voltage of 330 volts;
ora root-mean-squared voltage of 130 volts.
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Specification