Three-phase detection module
First Claim
Patent Images
1. An apparatus comprising:
- a first optocoupler that selectively allows a first current to flow from a first one of a first pair of N power supply lines to a second one of the first pair, wherein the N power supply lines each provide a phase signal, and wherein N is an integer greater than two;
a control module that controls the first optocoupler and that determines an occurrence of a phase failure of the phase signals based on a first signal, which is based on the first current; and
an output optocoupler that generates the first signal based on a total current including the first current.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus includes a first optocoupler and a control module. The first optocoupler selectively allows a first current to flow from a first one of a first pair of N power supply lines to a second one of the first pair. N is an integer greater than two. The N power supply lines each provide a phase signal. The control module controls the first optocoupler and determines an occurrence of a phase failure of the phase signals based on a first signal, which is based on the first current.
64 Citations
20 Claims
-
1. An apparatus comprising:
-
a first optocoupler that selectively allows a first current to flow from a first one of a first pair of N power supply lines to a second one of the first pair, wherein the N power supply lines each provide a phase signal, and wherein N is an integer greater than two; a control module that controls the first optocoupler and that determines an occurrence of a phase failure of the phase signals based on a first signal, which is based on the first current; and an output optocoupler that generates the first signal based on a total current including the first current. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An apparatus comprising:
-
a first optocoupler that selectively allows a first current to flow from a first one of N power supply lines to a second one of the N power supply lines, wherein the N power supply lines each provide a phase signal, and wherein N is an integer greater than two; a device that allows current to flow from the second one of the N power supply lines to the first one of the N power supply lines and that prevents current from flowing from the first one of the N power supply lines to the second one of the N power supply lines; a control module that controls the first optocoupler and that analyzes a first signal, which is based on the first current, to determine a phase failure of the phase signals; and an output optocoupler that generates the first signal based on a total current including the first current. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. An apparatus comprising:
-
N resistances, wherein N is an integer greater than two; N switching devices that each have first and second ends and that each selectively electrically connect the first end to the second end, wherein the first ends are coupled to respective ones of N power lines via the N resistances and wherein the second ends are connected to a common node, wherein each of the N power lines carries a power signal having a different one of N phases; an output device that is connected between the common node and a second node and that generates an output signal based on a current flowing between the common node and the second node; N unidirectional devices that each allow current to flow from a node at the first end of a respective one of the N switching devices to a corresponding one of the N power lines and that each inhibit current flow toward the first ends; and a control module that analyzes the output signal to determine a failure of the power signals and that selectively generates N control signals that respectively control the N switching devices. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification