System General Corporation Launches Brand New High-Performance Forward ATX Power Total Solution

System General Corporation Launches Brand New High-Performance Forward ATX Power Total Solution

September 04, 2006

    TAIPEI, Taiwan, Sept. 4 /Xinhua-PRNewswire/ -- System
General Corporation -- the leader in Desktop PC power
supply controlling ICs -- today announced a complete
forward power solution for desktop power supplies and PC
servers.  The major circuit of this solution consists of
System General products, including a PFC/PWM combo control
chip, a flyback PWM control chip, and a four channel
supervisor IC.  Its simple design structure significantly
improves the conversion efficiency of power systems and
reduces power system cost.  This excellent product
combination once again demonstrates SG's predominance in
R&D capability.

    In consideration of the perpetual evolution of computer
CPUs, graphic cards, and other peripheral functions, power
supplies are trending toward high-wattage design.  The
strict harmonics standards of the European Union and the
rising cost of raw materials have led to forward powers
system structures incorporating active PFC components that
take advantage of high efficiency and are gradually
becoming the optimal development choice for medium-high
power voltage supply design. With a record of experience
and strength, dominating over 40% of the global market in
Half-bridge ATX-Power, System General holds to the
innovative business philosophy and focus on power saving
that inspired the forward power solution, which integrated
internal power systems to achieve over 80% conversion
efficiency under various load conditions.  This solution
has perfectly satisfied the needs of power supply system
designers in their development concepts for environmentally
friendly power supplies.

    "System General has long devoted itself to
developing innovative power technology with low
power-consumption and high efficiency." said Gary Lin,
the senior Vice President of System General.  "To help
customers develop new products and meet the future market
trends, we provide the ideal power solution that simplify
power system design circuits and reduce external component
costs, as well as enhance the price-to-performance ratio of
power supplies."

    This leading solution highly integrates various
protection functions and high technology patents; its
optimal performance including complies with the EU harmonic
wave directive, has a power factor of over 98%, provides a
high power conversion efficiency of over 80%, and low
standby power consumption (under 1W).  With the above
amazing performance, System General is predicted to hold
its leading position in the Desktop PC power supply
market.

    Introduction of SG Power ICs in this Solution:

     -- SG6931/2 -- The highly-integrated PFC/PWM combo-IC
for forward    
        topology of a power supply/adaptor is designed to
provide current  
        transfer operations in Continuous Conduction Mode
(CCM) for high   
        output power systems rated above 150W. Its main
features include:   
        built-in green-mode function, highly integrated
Over Temperature 
        Protection (OTP), Over Voltage Protection (OVP),
Under Voltage 
        Protection (UVP), Over Power Protection (OPP),
Short Circuit 
        Protection (SCP) and Brown-Out protection.  Its
patent amplifier  
        technology also improves output dynamic response. 
In addition,  
        SG6931/2 allow maximum PWM cycle adjustment.

     -- SG6858 -- The low-watt fly-back PWM IC, its patent
Green Mode 
        technology, which realizes super-low standby power
and built-in 
        synchronized slope compensation, greatly improves
system stability.  
        In addition, it also features constant power output
limits, 
        programmable PWM frequency, Cycle-by-cycle Current
limiting, and many 
        other features.

     -- SG6516 -- The highly-integrated supervisor IC has
overall supervising 
        and protecting functions that can provide complete
protection for 
        power systems.  The SG6516 provides two 12V Over
Voltage Protection 
        (OVP), Under Voltage Protection (UVP), and Over
Current Protection 
        (OCP) functions.  Furthermore, it also features
highly precise VRI & 
        VPGI, built-in 20mS OCP timing delay protection,
300mS power good 
        signal protection, and PSON controlling switch
signals.

    For more information, please contact: 

     Ms. Claire Cheng 
     Tel:   [phone] x539 
     Fax:   [phone]
     Email: [e-mail]
     Web:   http://www.sg.com.tw

SOURCE  System General Corporation