HVAC motor automation control unit and adjustment methods and apparatus for same
US12259151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2022 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Mar 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P5/50
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for an automation control unit (ACU) for converting an automation control signal to a pulse width modulation (PWM) signal to control the output of a HVACR device such as a variable speed (VS) motor in an HVAC system is disclosed. The invention limits the motor output between a high and low limit, keeping the connected HVACR device operating within a safe range for the HVAC equipment. The invention simplifies commissioning of HVACR devices, constrains the equipment to operate within its designed operating range, optimizes energy efficiency of the HVAC equipment and minimizes disturbance in the controlled environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.