-
公开(公告)号：US20060289509A1
公开(公告)日：2006-12-28
申请号：US10558423
申请日：2004-05-25
IPC分类号： H05B6/68
CPC分类号： H02M1/4208 , Y02B70/126
摘要： An oscillation control signal generated by an inverter power source control circuit (12) includes a reference voltage setting signal for approximating the current waveform of the AC output form the AC power source (1) to a sinusoidal wave by making both sides of the waveform generate current according to the fluctuation of the PWM control signal, and a waveform shaping signal consisting of a peak adjustment signal of a sinusoidal waveform for approximating the waveform peak portion of the current waveform to a sinusoidal wave by subtraction. Accordingly, even if the PWM control signal fluctuates, it is possible to automatically improve the power factor of the power source circuit to a value higher than a predetermined value by approximating the current waveform of the AC output from the AC power source to the sinusoidal wave, thereby improving the efficiency of the power source.
摘要翻译： 由逆变器电源控制电路（12）产生的振荡控制信号包括参考电压设定信号，用于通过使波形的两侧生成来将从AC电源（1）输出的AC电流的电流波形近似为正弦波 根据PWM控制信号的波动的电流以及由用于通过减法将电流波形的波形峰值部分近似为正弦波的正弦波形的峰值调整信号组成的波形整形信号。 因此，即使PWM控制信号波动，也可以通过将从AC电源输出的AC的电流波形近似为正弦波，从而将电源电路的功率因数自动地提高到高于预定值的值 ，从而提高电源的效率。
-
公开(公告)号：US07230219B2
公开(公告)日：2007-06-12
申请号：US10558423
申请日：2004-05-25
CPC分类号： H02M1/4208 , Y02B70/126
摘要： An oscillation control signal generated by an inverter power source control circuit (12) includes a reference voltage setting signal for approximating the current waveform of the AC output form the AC power source (1) to a sinusoidal wave by making both sides of the waveform generate current according to the fluctuation of the PWM control signal, and a waveform shaping signal consisting of a peak adjustment signal of a sinusoidal waveform for approximating the waveform peak portion of the current waveform to a sinusoidal wave by subtraction. Accordingly, even if the PWM control signal fluctuates, it is possible to automatically improve the power factor of the power source circuit to a value higher than a predetermined value by approximating the current waveform of the AC output from the AC power source to the sinusoidal wave, thereby improving the efficiency of the power source.
摘要翻译： 由逆变器电源控制电路（12）产生的振荡控制信号包括参考电压设定信号，用于通过使波形的两侧生成来将从AC电源（1）输出的AC电流的电流波形近似为正弦波 根据PWM控制信号的波动的电流以及由用于通过减法将电流波形的波形峰值部分近似为正弦波的正弦波形的峰值调整信号组成的波形整形信号。 因此，即使PWM控制信号波动，也可以通过将从AC电源输出的AC的电流波形近似为正弦波，从而将电源电路的功率因数自动地提高到高于预定值的值 ，从而提高电源的效率。
-
公开(公告)号：US07304869B2
公开(公告)日：2007-12-04
申请号：US10558424
申请日：2004-05-25
CPC分类号： H02M1/32
摘要： At least one of a start abnormality detector (31), a temperature abnormality detector (32) and a voltage abnormality detector (33) has a latch inhibiting circuit for inhibiting retention of a detecting state when one of the abnormality detectors detects an abnormality, so that a current abnormality detector (34) can be inhibited from detecting an abnormal input current caused when the oscillation is halted by the abnormality detector. Accordingly, after the abnormality is removed, automatic resetting can be easily accomplished without causing the oscillation to halt as a result of the current abnormality detector detecting the presence of the abnormality. Also, since a power source abnormality detecting circuit (30) is designed in the form of an analog circuit, a low cost can be achieved and the monitoring level can be modified. In addition, the monitoring level associated only with the temperature abnormality occurring in an IGBT element (7) can be modified.
摘要翻译： 启动异常检测器（31），温度异常检测器（32）和电压异常检测器（33）中的至少一个具有用于当异常检测器检测到异常时禁止检测状态保持的锁存抑制电路，因此 可以禁止电流异常检测器（34）检测由异常检测器停止振荡时引起的异常输入电流。 因此，在异常被去除之后，由于当前异常检测器检测到异常的存在，可以容易地实现自动复位而不会使振荡停止。 此外，由于电源异常检测电路（30）以模拟电路的形式设计，所以可以实现低成本并且可以修改监视级别。 此外，可以修改仅与IGBT元件（7）中发生的温度异常相关联的监视电平。
-
公开(公告)号：US20060289511A1
公开(公告)日：2006-12-28
申请号：US10558424
申请日：2004-05-25
IPC分类号： H05B6/68
CPC分类号： H02M1/32
摘要： At least one of a start abnormality detector (31), a temperature abnormality detector (32) and a voltage abnormality detector (33) has a latch inhibiting circuit for inhibiting retention of a detecting state when one of the abnormality detectors detects an abnormality, so that a current abnormality detector (34) can be inhibited from detecting an abnormal input current caused when the oscillation is halted by the abnormality detector. Accordingly, after the abnormality is removed, automatic resetting can be easily accomplished without causing the oscillation to halt as a result of the current abnormality detector detecting the presence of the abnormality. Also, since a power source abnormality detecting circuit (30) is designed in the form of an analog circuit, a low cost can be achieved and the monitoring level can be modified. In addition, the monitoring level associated only with the temperature abnormality occurring in an IGBT element (7) can be modified.
摘要翻译： 启动异常检测器（31），温度异常检测器（32）和电压异常检测器（33）中的至少一个具有用于当异常检测器检测到异常时禁止检测状态保持的锁存抑制电路，因此 可以禁止电流异常检测器（34）检测由异常检测器停止振荡时引起的异常输入电流。 因此，在异常被去除之后，由于当前异常检测器检测到异常的存在，可以容易地实现自动复位而不会使振荡停止。 此外，由于电源异常检测电路（30）以模拟电路的形式设计，所以可以实现低成本并且可以修改监视级别。 此外，可以修改仅与IGBT元件（7）中发生的温度异常相关联的监视电平。
-
-
-
搜索结果
4 条记录 (耗时 0.015 秒)