DC to AC Power Supplies (Inverters)
DC-AC Inverters come with or without onboard dimming.
Press Release Summary:
Series L low-profile open frame inverters provide solution for larger 2- and 4-lamp LCDs that allows user to add externally controlled pulse width modulation dimming. Series LD comes with on-board PWM dimming with analog control. Module-specific 8m and 8mD inverters both provide up to 5 W of output power for single-lamp LCD modules, but only Series 8mD includes on-board dimming.
Original Press Release:
ERG Offers Wide Range of DC-AC Inverters With and Without Onboard Dimming
Endicott, NY, April 2003 - Endicott Research Group (ERG) Inc., the leading U.S. manufacturer of DC-AC inverters for powering CCFL-backlit LCDs, offers a comprehensive family of inverters with and without on-board PWM (pulse width modulation) dimming to provide maximum flexibility and ease of integration for display designers.
"PWM dimming provides a wide dimming range," says Don Jensen, Director of Engineering at ERG. "A lot of times, our customers do not have, or do not want to be bothered with obtaining, a source for a PWM signal. Putting PWM dimming on-board the inverter makes it directly compatible with a number of display controllers and also allows the user to install standard parts without having to do any custom design."
ERG now offers versions of many of its most popular inverters with and without on-board dimming. For example, ERG's L Series of low-profile open frame inverters provides a simple, economical and high-efficiency solution for larger 2- and 4-lamp LCDs that allows users to add externally controlled PWM dimming if they want to. The LD Series, which has the same footprint, low-profile (8 mm) and other features as the L Series, comes with on-board PWM dimming with analog control.
The same is true of ERG's low-cost, module-specific 8m and 8mD series inverters. Both provide up to 5W of output power for single-lamp LCD modules. Those looking for optimum no-frills efficiency can go with the economical 8m ($8.69 each in production quantities), whereas designers desiring the flexibility and convenience of on-board PWM dimming can choose the only slightly more expensive 8mD ($10.49 in production quantities).
Other ERG inverters available with and without on-board dimming include the 8mA/8mAD series, both of which are designed to power high-performance LCDs in the 10.4" and 12.1" diagonal size range, as well as the DMC/DMD series, both of which provide high-power solutions for 4-lamp LCD modules.
"It's all about flexibility and ease of integration," said Bill Abbott, ERG's Global Marketing Strategist. "If designers don't need dimming or already have their own dimming solution, they can use the lower-cost inverter without on-board dimming. But if they need dimming, then using an ERG inverter that has a PWM generator on the PC board means that it's compatible with most of the controller cards on the market today, and using the corresponding mating cable makes integration that much easier."
For more information, contact Endicott Research Group (ERG) Inc., P.O. Box 269, 2601 Wayne St., Endicott, NY, USA. Tel: 800-215-5866; 607-754-9187; Fax: 607-754-5592; Web: ergpower.com; E-mail: sales@ergpower.com.
Reader Service Inquiries: Please send to Bill Abbott, Endicott Research Group, P.O. Box 269, 2601 Wayne St., Endicott, NY 13760. Or E-mail to sales@ergpower.com.
