HVAC Air Handling Unit (AHU)

HVAC Solutions from Texas Instruments.

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Description

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.

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Application Notes (27)

Title Abstract Type Size (KB) Date Views
PDF 635 KB 25 Jul 2013 799
HTM 8 KB 01 Jul 2013 2115
HTM 8 KB 01 Jun 2011 409
HTM 9 KB 21 Sep 2009 2883
HTM 8 KB 19 Aug 2008 2372
HTM 8 KB 15 Mar 2007 4203
HTM 8 KB 20 Dec 2006 1796
HTM 8 KB 06 Jul 2004 494
HTM 9 KB 07 Jun 2004 300
HTM 8 KB 12 May 2003 1522
HTM 9 KB 10 Jul 2002 3290
HTM 9 KB 29 Apr 1999 1979
HTM 9 KB 11 Feb 1999 1241
HTM 9 KB 20 Nov 1998 1444
HTM 8 KB 01 Jan 1998 2211
HTM 8 KB 01 Jan 1998 7985
HTM 8 KB 01 Jan 1998 133
HTM 8 KB 01 Jan 1998 721
HTM 8 KB 01 Jan 1998 359
HTM 9 KB 01 Jul 1997 1105
HTM 8 KB 01 Jan 1997 1065
HTM 9 KB 01 Jan 1997 672
HTM 8 KB 01 Jan 1997 720
HTM 8 KB 01 Jan 1997 77
HTM 9 KB 01 Jun 1996 298
HTM 8 KB 01 Jan 1996 1975
HTM 8 KB 01 Jan 1996 1471
    

Selection and Solution Guides

Selection Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 5.57 MB 12 Aug 2014 9095

Solution Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 2.05 MB 31 Oct 2014 36294

Product Bulletin & White Papers

White Papers (6)

Title Abstract Type Size (MB) Date Views
PDF 429 KB 17 Sep 2013 924
PDF 528 KB 09 Jan 2013 2803
PDF 179 KB 20 Apr 2012 3650
PDF 113 KB 14 Feb 2012 229
PDF 315 KB 15 Apr 2010 1813
PDF 379 KB 21 Jan 2008 1030

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