Controller circuit including a switch mode power converter and automatic recloser using the same
First Claim
1. An autorecloser circuit, comprising:
- a relay circuit including an electromagnetic relay configured to be coupled between an AC power source and a customer location to deliver current from the AC power source to the customer location;
a controller coupled to the relay circuit that is configured to control the electromagnetic relay to disconnect the AC power source from the customer location and to reconnect the AC power source to the customer location;
a current sense circuit coupled to the controller that is configured to detect an amount of the current that is delivered to the customer location;
a reference voltage circuit coupled to the controller that is configured to establish a reference level for the amount of the current that is delivered to the customer location;
a power circuit coupled to the controller and to the relay circuit that is configured to provide a DC power source to the controller and to the relay circuit from the AC power source, wherein the controller is configured to disconnect the AC power source from the customer location when the detected amount of current exceeds the reference level and to reconnect the AC power source to the customer location responsive to detection of a reconnect condition;
a circuit board having the relay circuit, the controller, the current sense circuit, the reference voltage circuit and the power circuit thereon; and
a 3-pole locking-type connector coupled to the circuit board that is configured to couple the autorecloser circuit to the AC power source when inserted in an AC power receptacle.
2 Assignments
0 Petitions
Accused Products
Abstract
An autorecloser circuit including a relay circuit with an electromagnetic relay configured to be coupled between an AC power source and a customer location to deliver current from the AC power source to the customer location. A controller coupled to the relay circuit is configured to control the electromagnetic. A current sense circuit coupled to the controller is configured to detect an amount of the current that is delivered to the customer location and a reference voltage circuit coupled to the controller is configured to establish a reference level for the amount of the current that is delivered to the customer location. A power circuit coupled to the controller and to the relay circuit is configured to provide a DC power source to the controller and to the relay circuit from the AC power source. The controller is configured to disconnect or reconnect the AC power source from the customer location based on the detected amount of current.
-
Citations
18 Claims
-
1. An autorecloser circuit, comprising:
-
a relay circuit including an electromagnetic relay configured to be coupled between an AC power source and a customer location to deliver current from the AC power source to the customer location; a controller coupled to the relay circuit that is configured to control the electromagnetic relay to disconnect the AC power source from the customer location and to reconnect the AC power source to the customer location; a current sense circuit coupled to the controller that is configured to detect an amount of the current that is delivered to the customer location; a reference voltage circuit coupled to the controller that is configured to establish a reference level for the amount of the current that is delivered to the customer location; a power circuit coupled to the controller and to the relay circuit that is configured to provide a DC power source to the controller and to the relay circuit from the AC power source, wherein the controller is configured to disconnect the AC power source from the customer location when the detected amount of current exceeds the reference level and to reconnect the AC power source to the customer location responsive to detection of a reconnect condition; a circuit board having the relay circuit, the controller, the current sense circuit, the reference voltage circuit and the power circuit thereon; and a 3-pole locking-type connector coupled to the circuit board that is configured to couple the autorecloser circuit to the AC power source when inserted in an AC power receptacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An autorecloser circuit, comprising:
-
a relay circuit including an electromagnetic relay configured to be coupled between an AC power source and a customer location to deliver current from the AC power source to the customer location; a controller coupled to the relay circuit that is configured to control the electromagnetic relay to disconnect the AC power source from the customer location and to reconnect the AC power source to the customer location; a current sense circuit coupled to the controller that is configured to detect an amount of the current that is delivered to the customer location; a reference voltage circuit coupled to the controller that is configured to establish a reference level for the amount of the current that is delivered to the customer location; and a power circuit coupled to the controller and to the relay circuit that is configured to provide a DC power source to the controller and to the relay circuit from the AC power source, wherein the controller is configured to disconnect the AC power source from the customer location when the detected amount of current exceeds the reference level and to reconnect the AC power source to the customer location responsive to detection of a reconnect condition, wherein the relay circuit includes a pulse width modulator circuit configured to generate a pulse width modulated signal having a pulse width that varies responsive to an average voltage across a relay coil of the electromagnetic relay, the pulse width modulator including a voltage averaging circuit including a capacitor coupled in parallel with the relay coil.
-
Specification