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    • 10. 发明授权
    • Control voltage generator and method for generating control voltage having phase difference
    • 控制电压发生器及产生具有相位差的控制电压的方法
    • US06424133B1
    • 2002-07-23
    • US10012392
    • 2001-12-12
    • Hyeong Sik Choi
    • Hyeong Sik Choi
    • G05F140
    • G05F1/56
    • A control voltage generator and a related method generate control voltages having a phase difference. The control voltage generator includes first thru N-th loads (where N is a positive integer no less than 2), and is installed in an electronic device that may experience noise or malfunction when signals having the same phase are simultaneously inputted into the loads. In the control voltage generator, a sawtooth generator generates and outputs a sawtooth signal. and a first driving signal generator compares the sawtooth signal generated by the sawtooth generator with an input signal having information as to the degree of variation of an inherent level, which relates to an inherent function of the electronic device. The comparison result is outputted as a first driving signal. The control voltage generator also includes second thru N-th driving signal generators. An n-th driving signal generator (where 2≦n≦N) compares the input signal with the sawtooth signal, and outputs the comparison result as an n-th driving signal, the first thru N-th driving signals having different phases are provided to the first thru N-th loads, respectively, as control voltages, and the electronic device varies the inherent level in response to the control voltages. Therefore, it is possible to prevent unnecessary power consumption in the electronic device. In addition, it is possible to prevent the generation of noise and malfunction of the electronic device in advance, and it is also possible to increase the durability and reliability of the electronic device by preventing surges.
    • 控制电压发生器和相关方法产生具有相位差的控制电压。 控制电压发生器包括第一至第N负载(其中N是不小于2的正整数),并且安装在电子设备中,当具有相同相位的信号被同时输入到负载中时,可能会经历噪声或故障。 在控制电压发生器中,锯齿波发生器产生并输出锯齿波信号。 并且第一驱动信号发生器将由锯齿波发生器产生的锯齿波信号与具有关于电子设备的固有功能的固有电平的变化程度的信息的输入信号进行比较。 比较结果作为第一驱动信号输出。 控制电压发生器还包括第二至第N驱动信号发生器。 第n驱动信号发生器(其中2 <= n <= N)将输入信号与锯齿波信号进行比较,并将比较结果输出为第n驱动信号,第一至第N驱动信号具有不同相位 分别被提供给第一至第N个负载作为控制电压,并且电子设备响应于控制电压而改变固有电平。 因此,可以防止电子设备中的不必要的电力消耗。 此外,可以预先防止电子装置的噪声和故障的产生,并且还可以通过防止浪涌来增加电子装置的耐久性和可靠性。