Hyundai Electronics Industries Co. Ltd.

Cheil Industries Inc.

Korea Research Institute of Chemical Technology

Byoung Kwon Park

Kil-Yeong Choi

Jong Chan Won

Kwang-Sup Lee

In-Tae Lee

A voltage adjusting circuit includes a half VCC generator that generates a first voltage of a half VCC level or the like in accordance with a precharge input signal, and voltage compensator coupled respectively to output terminals of the half VCC generator. The voltage compensator compensates for a variation of the first voltage generated due to variations of a power supply voltage and a load. The first voltage is increased by supplying electric charges to the output terminals if the first voltage is less than a predetermined level, and the first voltage is decreased by sending the electric charges of the output terminal to the ground if the first voltage is greater than a predetermined level.

Voltage adjusting circuit

The present invention relates to new polyetherimideimides having imideimide group with the following structural formula(I) and inherent viscosity of 0.27.about.0.71 dl/g, which can be made by effecting reaction between an aromatic bis(ether anhydride) and an organic diamine or an aromatic bis(nitro imideimide) and a metal salt of diol. ##STR1## Wherein, R is ##STR2##

Polyetherimideimides and a method for manufacturing them

Growing community of inventors

Seoul, South Korea

Byoung Kwon Park