24-V, 50-W BLDC Motor Sinusoidal Drive Reference Design for Air Purifier Fans View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers. 24-V, 50-W BLDC Motor Sinusoidal Drive for Air Purifier Fans Design Guide (Rev. A) 29 Aug 2016  1,227 views View All Technical Documents (8) The TIDA-00656 reference design is a cost-effective, small form-factor (SFF),  three-phase sinusoidal motor drive for brushless DC (BLDC) motor up to a power of 50 W at 24 V. The board accepts 24 V at the input and provides three motor outputs to drive the BLDC motor sinusoidally. By using a microcontroller (MCU), in this case the MSP430G2303, the speed loop is closed externally after accepting the speed command over IR (infra-red) sensor. 50-W, 24-V Drive Capable of Driving Brushless DC (BLDC) Motors With Sinusoidal Commutation MSP430G2303 Functions to Accept the IR input and Close External Speed Loop DRV10983 Uses Proprietary Sensorless Control Scheme to Provide Continuous Sinusoidal Drive, Significantly Reducing Pure Tone Acoustics That Typically Occur as a Result of Commutation

Integrated Buck/ Linear Regulator to Efficiently Step Down Supply Voltage to 3.3 V for Powering Both Internal and External Circuits (TI MSP430™ MCU in This Design) Hardware design tested at 50W with good thermal performance This Design is a Tested, Ready to Use Hardware and Software Platform for Driving 12V/24V, <50W BLDC Motors TI's Standard Terms and Conditions for Evaluation Modules apply. Order samples, get tools and find more information on the TI products in this reference design.air duct cleaning mold treatment Design Kits & Evaluation Modulesair duct steam cleaning 24-V, 3-Phase Sensorless BLDC Motor Controllerrain sock for air cleaner Brushless DC (BLDC) Drivers View Design Kits & Evaluation Modules

MSP430G2x33, MSP430G2x03 Mixed Signal Microcontroller Replacing single-phase ACIMs with three-phase BLDC motors saves energy TIDA-00656 Schematic and Block Diagram Related Tools & Software TIDA-00656 Firmware (Rev. A) As a member ofmy.TI you can join theTI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. Engage in the Community Broadband RF/IF & Digital Radio Visit the TI Wiki Airpura Residential Air PurifiersHigh quality, all purpose residential air cleaners produced and designed by an engineer dedicated to the science of Airpura was designed by a former head engineer from a majorHere, existing technology has been configured and crafted to an ideal standard for effective air purification. are more than impressed; we  appreciate Airpura's product craftsmanship

In fact, Airpura has been chosen to manufacture the new BPA Smoke Muncher XL and Allergy Arrestor. - Call For Discount Removes neraly all common household airborne contaminates with a well designed 3 Stage filtration featuring a pleated prefilter, true HEPA filter and 18 pounds of granulated carbon. Airpura Deluxe VOC - Same features as the standard, except the carbon is blended with potassium iodide, capable of capturing and eliminating a wider range of chemical fumes! Titanium UV - Call For Discount top of the line (TitanClean) titanium dioxide (TiO2) air purifier uses TiO2 and UV light to create photo catalytic oxidation. byproducts - kills biological contaminants. chemicals into water vapor and carbon dioxide. - Call For DiscountSpecially designed to remove smoke and odors in small to medium sizedContains an amazing 3 inch deep bed of carbon that, a whopping 30 pounds of granulated activated carbon! Features a 3 inch deep cold rolled, pleated

HEPA filter, well designed, well sealed perfect for removing nearly all suspended airborne particles! All Models are available three interior design friendly colors to integrate into your home decor. Inside Continental US and Canada! Airpura Home Air Purifiers Engineered for airflow to travel the shortest distance possible, reducing noise and energy consumption.  similar to latest cartridge filters used in industrial air cleaners. Notice airflow does not pass over impellor.  direct air up and out. 5 years parts, 10 years labor. 0.3 um and larger.  UV kills smaller microbes.  gaseous particles are absorbed by carbon. See the particle size chart Major areas Airpura has addressed in air cleaner design are quality of air produced, user convenience, and Even though an air cleaner may use a HEPA filter rated at 99.97% efficient at catching particles 0.3 micron and larger, the air coming out is usually

Unfiltered air is commonly found leaking through seams or joints in a purifier's enclosure.  Air cleaners made by Airpura are pressure sealed such that they can handle the air pushing through them without any leaks.  The filter chamber is sealed with felt gaskets, instead of commonly used rubber, which cause off-gassing. Furthermore, the all metal housing totally eliminates any emissionsAnother typical mistake is positioning the motor in the clean air stream where impurities are pulled off the motor. Airpura positions their motor out of the air flow.  impurity problem Airpura has fixed is off-gassing from electrical components like capacitors, condensers or switches by providing a separate As far as aesthetics, construction, and usability, Airpura has kept things subtle, solid, and simple.  The cylindrical design comes in three colors that blend into most home's interiors: white, black or sandstone.  perforated steel exterior gives a soft appearance while providing

distributed air intake and distribution.  The motor uses a backward curved impeller design common to modern industrial blowers, which eliminates noise and vibration of a typical motor & shaft configuration. Airflow inside the purifier is simple and direct.  reduces turbulence, inefficiency, and noise of convoluted systems.  variable speed motor, controlled like a volume knob, gives you infinite adjustments to set it just high enough to do the job withoutSeparately changeable filters for HEPA and carbon allow you to only replace what is needed, saving operating cost. All Airpura home air cleaners have four standard filters: pre-filter, 2 micro-suppress filters, carbon filter, and true HEPAThe pre-filter can be vacuumed from the outside of the unit, extending its useful life; typically the pre-filter should be replaced onceThe micro-suppress filters reduce bacteria and viruses aroundThe carbon filter absorbs airborne chemicals, gases