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    • 62. 发明申请
    • Flame Retardant Thermoplastic Resin Composition
    • 阻燃热塑性树脂组合物
    • US20100152372A1
    • 2010-06-17
    • US12613584
    • 2009-11-06
    • In Hwan OHSung Hee AHNSung Duk HWANGSe Bum SONSeong Ho KONGHye Jin LEE
    • In Hwan OHSung Hee AHNSung Duk HWANGSe Bum SONSeong Ho KONGHye Jin LEE
    • C09K21/14
    • C09K21/08C08K5/03C08K5/3492C08L25/12C08L55/02C08L2666/24
    • The present inventors have developed flame retardant thermoplastic resin compositions which comprises 100 parts by weight of a rubber-modified aromatic vinyl copolymer resin (A) and about 10 to about 30 parts by weight of a brominated diphenyl ethane mixture (B) including about 55 to about 85% by weight of hexabromodiphenyl ethane. The rubber modified aromatic vinyl copolymer resin (A) according to the present invention is a polymer resin wherein grafted rubbery polymers are dispersed in the form of particles in a matrix of vinyl copolymer. The rubber-modified aromatic vinyl copolymer resin (A) includes grafted rubbery polymers in an amount of about 10 to about 100% by weight and the matrix of vinyl copolymer in an amount of about 0 to about 90% by weight. The brominated diphenyl ethane mixture (B) may have about 1 to about 25% by weight of diphenyl ethane having an odd number of bromine substituents.
    • 本发明人开发了阻燃热塑性树脂组合物,其包含100重量份的橡胶改性的芳族乙烯基共聚物树脂(A)和约10至约30重量份的溴化二苯乙烷混合物(B),其包含约55至 约85重量%的六溴二苯乙烷。 根据本发明的橡胶改性芳族乙烯基共聚物树脂(A)是其中接枝橡胶状聚合物以乙烯基共聚物基质中的颗粒形式分散的聚合物树脂。 橡胶改性的芳族乙烯基共聚物树脂(A)包括约10至约100重量%的接枝橡胶聚合物和约0至约90重量%的乙烯基共聚物基体。 溴化二苯乙烷混合物(B)可以具有约1至约25重量%的具有奇数个溴取代基的二苯基乙烷。
    • 68. 发明申请
    • Power converter having improved control
    • 电源转换器具有改进的控制
    • US20050111242A1
    • 2005-05-26
    • US10719505
    • 2003-11-21
    • In-Hwan Oh
    • In-Hwan Oh
    • H02M3/335
    • H02M3/33507H02M3/33515
    • A power converter using a microcontroller is disclosed herein. In one embodiment, the power converter can be a digital flyback or forward converter. The microcontroller may have a digital pulse-width-modulation (PWM) controller, arithmetic logic unit (ALU) core, internal random access memory (RAM), read-only memory (ROM), and one or more analog-to-digital (A/D) and digital-to-analog (D/A) converters. For a fast dynamic response in an inner current control loop, an analog comparator is used to provide analog-based current control. The analog comparator may compare a signal representative of the current flowing in the power converter against a voltage reference, which can be programmable. The analog comparator may be integrated with the digital microcontroller into single integrated circuit (IC) chip. Furthermore, the power converter can send signals for the status of various conditions (e.g., output voltage levels, current levels, errors, etc.) or can receive signals for system control commands (e.g., output voltage, current protection levels, standby-mode for a lowest power consumption, normal mode, and power ON or OFF commands) via a serial communication port.
    • 本文公开了使用微控制器的功率转换器。 在一个实施例中,功率转换器可以是数字反激或正激转换器。 微控制器可以具有数字脉冲宽度调制(PWM)控制器,算术逻辑单元(ALU)核,内部随机存取存储器(RAM),只读存储器(ROM)和一个或多个模数( A / D)和数模(D / A)转换器。 对于内部电流控制回路中的快速动态响应,模拟比较器用于提供基于模拟的电流控制。 模拟比较器可以将代表功率转换器中流动的电流的信号与可编程的参考电压进行比较。 模拟比较器可以与数字微控制器集成为单个集成电路(IC)芯片。 此外,功率转换器可以发送用于各种状况(例如,输出电压电平,电流水平,误差等)的状态的信号,或者可以接收用于系统控制命令的信号(例如,输出电压,电流保护电平,待机模式 通过串行通信端口实现最低功耗,正常模式和电源ON或OFF命令)。