会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • DC-DC converter
    • DC-DC转换器
    • US5502629A
    • 1996-03-26
    • US412112
    • 1995-03-28
    • Hidenobu ItoHiroko Mizuno
    • Hidenobu ItoHiroko Mizuno
    • H02M3/07H02M3/18
    • H02M3/07H03K2217/0018
    • A DC-DC converter includes first and second MOS transistors which selectively connect a first capacitor to a DC power supply so as to charge the first capacitor, and third and fourth MOS transistors which selectively connect the first capacitor to a second capacitor so as to charge the second capacitor by electric charges stored in the first capacitor. A predetermined output voltage is produced at a lead of the second capacitor serving as an output terminal, based on the charge/discharge operations of the first and second capacitors in response to the switching operations of the four MOS transistors. A variable voltage is applied to a back gate of one MOS transistor selected from the first to fourth MOS transistors. When the selected MOS transistor is on, a first control transistor in the converter forms a connection between a source and a back gate of the selected MOS transistor, to reduce the resistance value of the selected MOS transistor when turned on. When the selected MOS transistor is off, a second control transistor in the converter applies a voltage, selected from the predetermined output voltage and the supply voltages of the first and second DC power supplies, to the back gate of the selected MOS transistor. This prevents a parasitic bipolar transistor, inherently formed in the selected MOS transistor, from turning on.
    • DC-DC转换器包括第一和第二MOS晶体管,其选择性地将第一电容器连接到DC电源以对第一电容器充电;以及第三和第四MOS晶体管,其选择性地将第一电容器连接到第二电容器以便充电 所述第二电容器通过存储在所述第一电容器中的电荷。 基于四个MOS晶体管的开关操作,基于第一和第二电容器的充电/放电操作,在作为输出端子的第二电容器的引线处产生预定的输出电压。 将可变电压施加到从第一至第四MOS晶体管选择的一个MOS晶体管的背栅极。 当所选择的MOS晶体管导通时,转换器中的第一控制晶体管形成所选择的MOS晶体管的源极和后栅极之间的连接,以便在导通时降低所选择的MOS晶体管的电阻值。 当所选择的MOS晶体管截止时,转换器中的第二控制晶体管将从预定输出电压和第一和第二直流电源的电源电压中选择的电压施加到所选择的MOS晶体管的背栅极。 这防止了所选MOS晶体管中固有地形成的寄生双极晶体管导通。
    • 7. 发明授权
    • Method of and apparatus for pelletizing radioactive waste powder
    • 造粒放射性废粉的方法和设备
    • US4755332A
    • 1988-07-05
    • US850667
    • 1986-04-11
    • Hiroko MizunoMakoto KikuchiShin TamataSatoru OhashiTadashi Sakuraoka
    • Hiroko MizunoMakoto KikuchiShin TamataSatoru OhashiTadashi Sakuraoka
    • G21F9/30B30B11/02B30B15/00G21F9/00G21F9/34G21C21/00G21F9/36
    • G21F9/34B30B11/025B30B15/0017Y10S100/903Y10S100/906Y10S425/812
    • A method of and apparatus for pelletizing a radioactive waste powder is disclosed. The apparatus includes a pelletizing section, and a pelletizing die which has one end facing a powder receiving cavity formed in the pelletizing section and the other end exposed to the atmosphere, and a through bore is so formed in the die as to pass from the one end to the other end. A first pelletizing rod can be inserted into and pulled out of the through bore from the one end of the die through the cavity, and a second pelletizing rod can be inserted into a pulled out of the through bore from the other end of the die. The first and second rods are arranged such that, when the second rod takes a predetermined position in the through bore, the first rod is inserted through the receiving cavity into the through bore, thereby enabling the pelletizing operation of the powder within the through bore. The structure is adopted for allowing air compressed in the through bore to be discharged into the cavity without causing the compressed air to leak into the atmosphere during the pelletizing operation.
    • 公开了一种用于造粒放射性废粉的方法和装置。 该设备包括造粒部分和造粒模具,其一端朝向形成在造粒部分中的粉末容纳腔,而另一端暴露于大气,并且通孔如此形成在模具中以从一个 结束对方 第一颗粒棒可以从模具的一端插入并从通孔中拉出,并且第二颗粒棒可以从模具的另一端插入从通孔中拉出。 第一杆和第二杆被布置成使得当第二杆在通孔中采取预定位置时,第一杆通过接收腔插入通孔中,从而使得粉末在通孔内的造粒操作。 采用该结构,使得在通气孔中压缩的空气能够在造粒操作期间将压缩空气泄漏到大气中。