Two-wire connection with component control
AssigneeCarrier Corporation
InventorsMatthew Clark, Eduardo Iturbide, Daniel Nocito
Life of this patent
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Abstract
Provided are embodiments for a system for providing component control over a two-wire connection. The embodiments can include a control unit connected to a power source, a remote unit coupled to the control unit over the two-wire connection, the two-wire connection including a power/communication wire and a common wire, and a bridge-type amplifier configured to receive a power signal from the remote unit, the bridge-type amplifier configured to generate a square wave from the power signal. Also provided are embodiments for a method for providing component control over a two-wire connection.
Claims5
An HVAC system for providing component control over a two-wire connection, the system comprising:
- a control unit connected to a power source;
- an outdoor unit coupled to the control unit over the two-wire connection, the two-wire connection consisting of a power/communication wire and a common wire, the two-wire connection carrying an AC signal;
- a bridge-type amplifier configured to receive a power signal from the remote unit, the bridge-type amplifier configured to generate a square wave from the power signal;
- a compressor contactor located in the outdoor unit;
- the bridge-type amplifier configured to provide the square wave to the compressor contactor to provide energy to the compressor contactor during a positive half cycle of the AC signal and a negative half cycle of the AC signal while maintaining the ability to communicate over the negative half cycle.
Dependencies are inferred from the claim text.