May 29, 2003 - Model TG2601 vControl improves open-loop, ironless core, brushless motor system efficiency at all speeds and torque levels via sinusoidal current waveform output that is in phase with sinusoidal back EMF waveform during each commutation cycle. Product minimizes high current ripple and additional losses by operating at PWM frequency of 120 kHz and commutates motor without need for position sensors. Product also utilizes Diagnostic/Mode indicators and thermistors.

Related categories: Controls and Controllers

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(Products mentioned in this Archive Press Release may or may not be available from the manufacturer.)

Release date: May 20, 2003

ThinGap Motor Technologies Announces: Sensorless High Frequency Velocity Controller for Ironless Core Brushless Motors

Improves System Efficiency and Minimizes Electrical Losses in Open Loop Ironless Core Brushless Motor Applications

VENTURA, CALIFORNIA - MAY 20, 2003 - ThinGap Motor Technologies today has announced the new TG2601 vControl for significantly improving ironless core brushless motor system efficiency at all speeds and torque levels. The vControl minimizes high current ripple and additional losses by operating at a PWM frequency of 120 kHz, which is significantly higher than most PWM drives.

"With the sensorless vControl, we have minimized losses attributed to low frequency controls used in open loop ironless core brushless motor applications," said Greg Graham, Chief Technology Officer, ThinGap Motor Technologies. "Our customers can minimize the cost and weight of motors and controls, while utilizing the higher system efficiency of 92% or better over a very broad speed and torque range."

Efficiency improvements are achieved at all speeds and torque levels because the vControl's sinusoidal current waveform output is in phase with the sinusoidal back EMF waveform during each commutation cycle. This provides maximum power to the shaft while minimizing losses. In fact, the vControl will improve the efficiency of any controller/BLDC motor system, because switching losses are significantly lower than in other controllers.

The vControl commutates the motor without the need for position sensors, eliminating leads and components. The motor is accelerated open loop until the back EMF is high enough (approx. 500 RPM) to provide commutation data. Then the motor operates as a commutated brushless motor in a velocity mode with an inner current loop.

The vControl features Diagnostic / Mode indicators, which make troubleshooting and monitoring much easier and faster. Thermistors are utilized to provide thermal protection for the controller and the motor. The 8.3-oz vControl is a lightweight solution. An unpackaged ultra-lightweight 5.5-oz board is available for OEMs. The three-phase vControl was designed to maximize system efficiency with ironless core brushless motors.

For more information, contact ThinGap Motor Technologies, 2140 EastmanAvenue, Suite 112, Ventura, California 93003, Phone: (805) 477-9741, Fax: (805) 477-7535, http://www.ThinGap.com.

About ThinGap

ThinGap Motor Technologies makes a revolutionary line of brush and brushless DC motors without wire windings. These motors are utilized for industrial applications including robots, wafer handling, medical instrumentation and devices, power and machine tools, air bearing spindles, factory automation, material handling, packaging equipment, unmanned aerial vehicles and fuel cells. Motors are manufactured in ThinGap's Ventura, California facilities.

ThinGap® is a Registered Trademark of G&G Technology, Inc, a California Corporation.

Contacts:

General Information:
Bob Thomas
USA
Phone: 818-761-8405

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Company Information:
Name: ThinGap LLC
Address: 2064 Eastman Avenue
City: Ventura
State: CA
ZIP: 93003
Country: USA
Phone: 805-477-9471
FAX: 805-477-7535
http://thingap.com

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