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1. 发明专利

JPS57211616A DC STABILIZED POWER SUPPLY DEVICE 失效
公开(公告)号：JPS57211616A
公开(公告)日：1982-12-25
申请号：JP9619681
申请日：1981-06-22
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： OSABE RIYOUJI , NAKAJIMA HIROSHI
IPC分类号： G05F1/56 , H02M3/335
摘要： PURPOSE:To make the device small-sized and lightweight and improve the efficiency, by controlling a part of the overall output power by an auxiliary switching regulator which controls only components of the variable range of an output voltage and an input variation. CONSTITUTION:The device consists of a pulse width fixed converter CVA and a switching regulator SRB, and the DC input applied across terminals T1 and T2 is switched by a transistor TR13 of the SRB and is transformed by a converter trnsformer 14 and is rectified by diodes 15 and 16 and is smoothed by a choke coil 17 and a capacitor 18 and is applied as a DC voltage across the middle of a transformer 4 and emitters of TRs 2 and 3 of the CVA. Consequently, the sum of the output voltage of the SRB and the DC input is applied to the transformer 4. The difference between a reference voltage and a voltage obtained by dividing the output of the CVA is amplified by a differential amplifier 10, and the TR13 is controlled by a signal having a pulse width prescribed by the output of the amplifier 10. Since the SRB controls only the variation of input and output and smoothing of the CVA is performed only for the peak value, no inductance is required, and the device is small-sized and lightweight.

2. 发明专利

JPS5532437A HIGHHVOLTAGE POWER SUPPLY DEVICE 失效
公开(公告)号：JPS5532437A
公开(公告)日：1980-03-07
申请号：JP10369678
申请日：1978-08-25
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： OSABE RIYOUJI , NAKASHIMA SATORU
IPC分类号： H02M3/28
摘要： PURPOSE:To raise the efficiency of a high-voltage power supply device, dispense with an auxiliary high-potential power supply circuit and reduce the weight of the device, by inserting a series control transistor of a series regulator into a low-potential output line for the output of a converter of fixed pulse width. CONSTITUTION:The series control transistor 40 of the series regulator 46 is inserted into the grounded potential line of the converter 33 of fixed pulse width. The input voltage to the series control transistor 40 is regulated by a chopper regulator 49 so that the voltage is kept at alow constant level independently of the output voltage of the transistor. Therefore, the efficiency of the device is raised much more than a conventional device wherein the fluctuating part of the output voltage is all applied to a load. No auxiliary high-potential power supply circuit is needed.

3. 发明专利

JPS57211615A DC STABILIZED POWER SUPPLY DEVICE 失效
公开(公告)号：JPS57211615A
公开(公告)日：1982-12-25
申请号：JP9619581
申请日：1981-06-22
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： NAKAJIMA HIROSHI , OSABE RIYOUJI
IPC分类号： G05F1/56 , H02M3/155
摘要： PURPOSE:To obtain a small-sized and highly efficient DC stabilized power supply device, by switching a DC input voltage to interrupt it in accordance with the pulse width of a control signal and adding or subtracting a DC output obtained by smoothing this DC input voltage to or from the input voltage. CONSTITUTION:A part of the DC input voltage applied across terminals t11 and t12 is interrupted by a switching transistor TR12 and is dropped by a converter transformer 11 and is rectified and smotthed through a rectifying diode 12, a flywheel diode 17, a choke coil 14, and a capacitor 18 and is added as a DC voltage to the input voltage, this addition voltage is outputted as a DC output across terminals t13 and t14. This DC output is divided by resistances 15 and 16 and is sent to a diffferential amplifier 18 and is compared with a reference voltage 20 to obtain an error signal. The pulse width of a pulse width controlling circuit 21 is determined by this error signal, and the pulse switches the TR12 through a driving circuit 22. Thus, since only the variation of input and output is controlled, each element is small-sized, and the power consumption is small, and a highly efficient stabilized DC power supply device is obtained.

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