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1. 发明公开

EP0588569A3 Power supply for electronic device, and electronic device system 失效
标题翻译：电子设备用电源和电子设备系统
公开(公告)号：EP0588569A3
公开(公告)日：1994-05-25
申请号：EP93307159.9
申请日：1993-09-10
申请人： International Business Machines Corporation
发明人： Narita, Izuru , Suzuki, Keiji , Mito, Toshitsugu , Tsurukawa, Noboru
IPC分类号： H02J7/02
CPC分类号： H02J7/0068 , H02J7/0072 , H02J9/061 , Y10S320/10
摘要： To make it possible to supply to a battery a charging current having a sufficient capacity which enables a short-time charge while supplying a drive current for usual operation to a battery operable electronic device, without making construction large-sized and complicated. The present invention is intended to be able to delicately vary a charging current of a battery according to the variation of power consumption of load on an electronic device, by providing constant power feedback control means for performing feedback control of the output power so as to cause a constant power or a nearly constant power, based on a current feedback value and a voltage feedback value.

2. 发明公开

EP0588569A2 Power supply for electronic device, and electronic device system 失效
标题翻译： NetzteilfürelektronischesGerätundElektrogerätesystem。
公开(公告)号：EP0588569A2
公开(公告)日：1994-03-23
申请号：EP93307159.9
申请日：1993-09-10
申请人： International Business Machines Corporation
发明人： Narita, Izuru , Suzuki, Keiji , Mito, Toshitsugu , Tsurukawa, Noboru
IPC分类号： H02J7/02
CPC分类号： H02J7/0068 , H02J7/0072 , H02J9/061 , Y10S320/10
摘要： To make it possible to supply to a battery a charging current having a sufficient capacity which enables a short-time charge while supplying a drive current for usual operation to a battery operable electronic device, without making construction large-sized and complicated. The present invention is intended to be able to delicately vary a charging current of a battery according to the variation of power consumption of load on an electronic device, by providing constant power feedback control means for performing feedback control of the output power so as to cause a constant power or a nearly constant power, based on a current feedback value and a voltage feedback value.
摘要翻译：为了能够向电池提供具有足够的容量的充电电流，其能够在为电池可操作的电子设备提供用于常规操作的驱动电流的同时实现短时间充电，而不会使结构变大而复杂。本发明旨在通过提供用于执行输出功率的反馈控制的恒定功率反馈控制装置，根据电子设备上的负载的功率消耗的变化来精细地改变电池的充电电流，从而使基于电流反馈值和电压反馈值的恒定功率或几乎恒定的功率。

3. 发明公开

EP0696832A3 Power supply unit for an electronic system and a method for controlling the unit 失效
标题翻译：为用于控制单元的电子系统和方法电源单元
公开(公告)号：EP0696832A3
公开(公告)日：1997-05-28
申请号：EP95305567.0
申请日：1995-08-09
申请人： International Business Machines Corporation
发明人： Suzuki, Keiji , Kozasu, Yohichi
IPC分类号： H02J9/06
CPC分类号： H02J9/061 , Y10T307/615 , Y10T307/625 , Y10T307/766 , Y10T307/826 , Y10T307/839 , Y10T307/858
摘要： Disclosed is a power supply unit that can properly prevent a reverse current from a battery to an external power source and that is employed for an electronic system, such as a notebook computer, which is activated by both an external power source and an incorporated battery, and a method for controlling such a power supply unit. A power supply unit for an electronic system, to which power is supplied by both an external power source and a battery, comprises: voltage detection means for detecting an output voltage of the external power source; current detection means for detecting an output current of the external power source; logical sum means for outputting a logical sum of the detection results of the voltage detection means and the current detection means; and connection/disconnection means for connecting and disconnecting the external power source in response to the output of the logical sum means. Since the external power source is disconnected when only the battery is active, a reverse current from the battery is properly prevented. The connection/disconnection means of the external power source includes only an FET switch, does not require a Schottky barrier diode, so that heat generation will not occur.

4. 发明公开

EP0696832A2 Power supply unit for an electronic system and a method for controlling the unit 失效
标题翻译： Stromversorgungseinheitfürein elektronisches System und Verfahren zur Steuerung der Einheit
公开(公告)号：EP0696832A2
公开(公告)日：1996-02-14
申请号：EP95305567.0
申请日：1995-08-09
申请人： International Business Machines Corporation
发明人： Suzuki, Keiji , Kozasu, Yohichi
IPC分类号： H02J9/06
CPC分类号： H02J9/061 , Y10T307/615 , Y10T307/625 , Y10T307/766 , Y10T307/826 , Y10T307/839 , Y10T307/858
摘要： Disclosed is a power supply unit that can properly prevent a reverse current from a battery to an external power source and that is employed for an electronic system, such as a notebook computer, which is activated by both an external power source and an incorporated battery, and a method for controlling such a power supply unit.
A power supply unit for an electronic system, to which power is supplied by both an external power source and a battery, comprises: voltage detection means for detecting an output voltage of the external power source; current detection means for detecting an output current of the external power source; logical sum means for outputting a logical sum of the detection results of the voltage detection means and the current detection means; and connection/disconnection means for connecting and disconnecting the external power source in response to the output of the logical sum means. Since the external power source is disconnected when only the battery is active, a reverse current from the battery is properly prevented. The connection/disconnection means of the external power source includes only an FET switch, does not require a Schottky barrier diode, so that heat generation will not occur.
摘要翻译：公开了一种能够适当地防止从电池到外部电源的反向电流并且用于诸如笔记本电脑的电子系统的电源单元，其由外部电源和并入的电池两者来激活，以及用于控制这种电源单元的方法。一种用于由外部电源和电池供电的电子系统的电源单元，包括：用于检测外部电源的输出电压的电压检测装置; 用于检测外部电源的输出电流的电流检测装置; 逻辑和装置，用于输出电压检测装置和电流检测装置的检测结果的逻辑和; 以及用于响应于逻辑和装置的输出来连接和断开外部电源的连接/断开装置。由于仅在电池处于活动状态时外部电源断开，所以正确防止来自电池的反向电流。外部电源的连接/断开装置仅包括FET开关，不需要肖特基势垒二极管，从而不会发生发热。

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