HVAC - Heating, Ventilating, and Air Conditioning

HVAC Solutions from Texas Instruments.

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Design Considerations

Heating, ventilation, and air conditioning (HVAC) systems are becoming more sophisticated as manufacturers design features into the product that make them more reliable, quieter, more efficient, and with a higher comfort level in ambient temperature. Texas Instruments offers products to meet the needs of these higher performance systems.

Energy Efficiency :

Digital signal controller systems save energy. Since most air conditioners operate with a light load, an inverter-controlled air conditioner can adjust the compressor motor speed for a light load by changing the frequency. This allows designers to use a high-efficiency compressor motor in the outdoor unit of the air conditioner.

Power Factor Correction (PFC) :

PFC is a technique of counteracting the undesirable effects of electric loads that create a power factor that is less than 1. PFC is needed because of the continuous transients and surge currents exhibited by the electric motor, and it is also used to boost the rectified mains voltage up to 300 V to 450 V, which is then used to power the 3-phase inverters which ultimately operate the electric motor. With TI products, PFC can be performed externally with a separate integrated circuit or it can be done in the digital signal controller eliminating the need for a separate external PFC controller.

High-Voltage Isolation :

For larger, higher-performance systems where reliability and motor-control accuracy are key concerns, TI offers isolation products that block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

Integration :

Texas Instruments provides fully-integrated solutions such as the digital signal controllers (for digital motor control, PFC, and other system functions), and relay drivers that provide up to 8 channels, zero-volt detection, and 5 V linear regulation for 5 V logic that may reside on the board.

Home Network :

A home mesh network consisting of home appliances, audio/video equipment, HVAC system, lighting fixtures, etc connected wirelessly and controlled via a remote control is possible today with TI’s ZigBee™ products. TI provides customers with industry-leading ZigBee™ -compliant solutions and a broad range of proprietary RF-ICs that enable innovative low-power RF applications. HVAC and thermostat (or indoor controller unit) manufacturers can develop products that wirelessly communicate with each other. Furthermore, temperature settings can be controlled via a remote control unit. With low-power wireless solutions from TI, home owners will benefit from a universal remote control that: 1. Does not require line-of-sight 2. Has an increased range such that one can remotely control any ZigBee™ device from anywhere in the home. 3. Allows for two-way communication.

Power Management :

Offline 24 V power supply lines are typically available in most homes. TI offers buck controllers and linear regulators that convert this offline voltage to something the microcontroller on the thermostat or indoor controller unit can use either 3.3 V or 1.8 V typically.

Application Notes (23)

Title Abstract Type Size (KB) Date Views
HTM 8 KB 01 Jun 2011 1029
HTM 9 KB 21 Sep 2009 2563
HTM 8 KB 19 Aug 2008 2350
HTM 8 KB 15 Mar 2007 2353
HTM 8 KB 20 Dec 2006 2097
HTM 9 KB 07 Jun 2004 995
HTM 8 KB 12 May 2003 1608
HTM 9 KB 10 Jul 2002 3155
HTM 9 KB 29 Apr 1999 2077
HTM 9 KB 11 Feb 1999 850
HTM 9 KB 20 Nov 1998 1346
HTM 8 KB 01 Jan 1998 882
HTM 8 KB 01 Jan 1998 4699
HTM 8 KB 01 Jan 1998 665
HTM 8 KB 01 Jan 1998 1001
HTM 8 KB 01 Jan 1998 741
HTM 9 KB 01 Jul 1997 893
HTM 8 KB 01 Jan 1997 616
HTM 9 KB 01 Jan 1997 738
HTM 8 KB 01 Jan 1997 852
HTM 8 KB 01 Jan 1997 664
HTM 8 KB 01 Jan 1996 1069
HTM 8 KB 01 Jan 1996 1215
    

Reference Designs

Description Part Number Company Tool Type
CC1020 Evaluation Board Reference Design CC1020EB_REFDES Texas Instruments Reference Designs
CC1020EMX Reference Design CC1020EMX_REFDES Texas Instruments Reference Designs
CC1101EM 315 and 433MHz Reference Design CC1101EM433_REFDES Texas Instruments Reference Designs
CC1101EM 868 and 915MHz Reference Design CC1101EM868-915_REFDES Texas Instruments Reference Designs
CC2500 Reference Design (62 mil layer spacing) CC2500_REFDES_062 Texas Instruments Reference Designs
CC2500EM Reference Design CC2500EM_REFDES Texas Instruments Reference Designs

Selection and Solution Guides

Selection Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 4.16 MB 23 Jul 2009 6796

Solution Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 5.83 MB 26 Oct 2012 15981

Tools and Software

Name Part # Company Software/Tool Type
Code Composer Studio (CCS) Integrated Development Environment (IDE) CCSTUDIO Texas Instruments SW Development Tools, IDEs, Compilers
F280x Digital Motor Control Library SPRC215 Texas Instruments Application Software & Frameworks

Product Bulletin & White Papers

White Papers (4)

Title Abstract Type Size (MB) Date Views
PDF 429 KB 17 Sep 2013 1406
PDF 179 KB 20 Apr 2012 3203
PDF 113 KB 14 Feb 2012 777
PDF 379 KB 21 Jan 2008 1200

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