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1. 发明授权

US5680302A AC output control apparatus 失效
标题翻译：交流输出控制装置
公开(公告)号：US5680302A
公开(公告)日：1997-10-21
申请号：US702159
申请日：1996-08-23
申请人： Keiji Iwata , Michihisa Murasato , Kenichi Tanigawa , Sadaharu Tamoto
发明人： Keiji Iwata , Michihisa Murasato , Kenichi Tanigawa , Sadaharu Tamoto
IPC分类号： H02M7/5387 , H02M7/5395
CPC分类号： H02M7/53873
摘要： An inverter for DC/AC conversion includes an inverter bridge controlled by a PWM controller. The inverter has a first control loop for performing PWM control in accordance with the difference between the instantaneous AC value of an inverter output and an amplitude of waveform data read out from an AC waveform memory. The inverter also has a second control loop for multiplying the amplitude value of the waveform data by a coefficient adjusted on the basis of the error between the means AC current or voltage value of the inverter outputs and a target control value, and performing PWM control in accordance with waveform data having the adjusted amplitude. By using a delta scheme of finely increasing/decreasing at a time the coefficient by which waveform data is multiplied, an inverter with a high control precision and high stability can be obtained.
摘要翻译：用于DC / AC转换的逆变器包括由PWM控制器控制的逆变桥。逆变器具有用于根据逆变器输出的瞬时AC值与从AC波形存储器读出的波形数据的幅度之差进行PWM控制的第一控制回路。逆变器还具有第二控制回路，用于将波形数据的振幅值乘以基于逆变器输出的装置AC电流或电压值与目标控制值之间的误差调整的系数，并且执行PWM控制根据具有调整幅度的波形数据。通过使用一次精细地增加/减少波形数据相乘的系数的delta方案，可以获得具有高控制精度和高稳定性的逆变器。

2. 发明授权

US5896284A Switching power supply apparatus with a return circuit that provides a return energy to a load 失效
标题翻译：开关电源装置具有向负载提供返回能量的回路
公开(公告)号：US5896284A
公开(公告)日：1999-04-20
申请号：US689232
申请日：1996-08-06
申请人： Michihisa Murasato , Mitsuru Kanno , Sadaharu Tamoto
发明人： Michihisa Murasato , Mitsuru Kanno , Sadaharu Tamoto
IPC分类号： H02J1/00 , H02M1/34 , H02M3/155 , H03K17/00 , H03K17/0814 , H02M7/00 , G05F1/40 , G05F1/577
CPC分类号： H02M1/34 , H02M3/155 , H03K17/08142 , H02M2001/009 , H02M2001/346 , H03K2217/0036 , H03K2217/0081 , Y02B70/1491
摘要： A switching power supply apparatus which effectively utilizes energy accumulated in a leak inductance of a circuit to enhance the efficiency. The switching power supply apparatus having a switch element on/off controlled by a driving signal generated from a driver circuit, wherein a first capacitor and a first diode are inserted in series between both terminals of the switch , and a second capacitor and a second diode are further connected in series between a connecting point of the first capacitor and the first diode and a grounding terminal of the switch element to use charges accumulated on the second capacitor as a voltage source.
摘要翻译：一种开关电源装置，其有效地利用蓄积在电路的漏电感中的能量来提高效率。开关电源装置具有由驱动电路产生的驱动信号控制的开关元件导通/截止，其中第一电容器和第一二极管串联插入开关的两个端子之间，第二电容器和第二二极管在第一电容器和第一二极管的连接点和开关元件的接地端子之间进一步串联连接，以使用累积在第二电容器上的电荷作为电压源。

3. 发明授权

US4823247A Stabilized power supply unit 失效
标题翻译：稳定电源单元
公开(公告)号：US4823247A
公开(公告)日：1989-04-18
申请号：US150374
申请日：1988-01-29
申请人： Sadaharu Tamoto
发明人： Sadaharu Tamoto
IPC分类号： H02H7/122 , H02J9/06 , H02M3/158 , H02M5/458 , H02M7/48 , H02M3/335
CPC分类号： H02M1/4225 , H02J9/062 , H02M3/158 , H02M5/458 , Y02B70/126
摘要： A stabilized power supply unit designed to supply the power from the commercial power source as far as the commercial power source is normal but supply the power from a battery that can be made available by an automatic switching device when the commercial power source has failed, wherein the AC voltage from the commercial power source is rectified by a rectification circuit to obtain almost equal DC currents on both the positive and negative sides of the common line while the commercial power source is normal. Said DC voltage is chopped by the boosting chopper circuit to boost the voltage on both the positive and negative sides. The boosted voltage is converted into the AC voltage through the DC-AC inverter, and the high-frequency component of the AC voltage is compressed through the filter in order to be outputted as an AC voltage of specified frequency. When the AC voltage is not inputted due to the failure of the commercial power source, the DC voltage from the battery is applied to the DC-AC inverter in order to be converted into the AC current and outputted as the specified AC voltage through the filter. In this manner, the direct transmission circuit with a common line can be formed without including an isolation device.
摘要翻译：一种稳定电源单元，其设计用于从商用电源提供电源，直到商用电源正常，但是当商用电源发生故障时，可以从可由自动切换装置使用的电池供电，其中商用电源的交流电压由整流电路整流，在商用电源正常时在公共线的正，负两侧获得几乎相等的直流电流。所述直流电压由升压斩波电路斩波，以提高正负两端的电压。升压电压通过DC-AC逆变器转换为交流电压，并通过滤波器压缩交流电压的高频分量，以便作为指定频率的交流电压输出。当由于商用电源的故障而没有输入交流电压时，来自电池的直流电压被施加到DC-AC逆变器，以便转换为交流电流并通过滤波器作为指定的交流电压输出。以这种方式，可以在不包括隔离装置的情况下形成具有公共线的直接传输电路。

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