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. 发明申请
    • POWER CONVERSION APPARATUS
    • 功率转换装置
    • US20140226380A1
    • 2014-08-14
    • US14125924
    • 2012-09-20
    • Tetsuya Kawashima
    • Tetsuya Kawashima
    • H02M7/539
    • H02M7/539H02M7/48H02M7/53873H02M2001/0009
    • A current flowing into one of half-bridge circuits of a power semiconductor module (10) is detected by corresponding one of current detection circuits (11a and 11b to 11f) through a current detection terminal provided in corresponding one of semiconductor switching devices (Q1 and Q2 to Q6) forming the half-bridge circuits and a current detection terminal provided in corresponding one of flywheel diodes (D1 and D2 to D6) back-to-back connected to the corresponding one of the semiconductor switching devices (Q1 and Q2 to Q6). A pulse voltage waveform indicating the current detected by the corresponding one of the current detection circuits (11a and 11b to 11f) is held for a predetermined period and converted into a stepwise voltage waveform by use of corresponding one of sample-and-hold circuits (14a, 14b and 14f), so that the voltage held by the corresponding one of the sample-and-hold circuits (14a, 14b and 14c) is transmitted to a control circuit (20) through corresponding one of insulating circuits (14a, 14b and 14c).
    • 流入功率半导体模块(10)的半桥电路之一的电流通过相应的一个电流检测电路(11a和11b至11f)通过设置在相应的一个半导体开关器件(Q1和 Q2和Q6)形成半桥电路,以及设置在相应的一个续流二极管(D1和D2至D6)中的电流检测端子,背对背连接到相应的一个半导体开关器件(Q1和Q2至Q6) )。 指示由相应的一个电流检测电路(11a和11b至11f)检测的电流的脉冲电压波形保持预定时间段,并且通过使用相应的一个采样和保持电路( 使得由相应的一个采样保持电路(14a,14b和14c)保持的电压通过相应的一个绝缘电路(14a,14b)传输到控制电路(20) 和14c)。
    • 6. 发明授权
    • Switching power supply system provided with under voltage lock out circuit
    • 开关电源系统配有欠压锁定电路
    • US08558527B2
    • 2013-10-15
    • US13109331
    • 2011-05-17
    • Masahiro SasakiTetsuya Kawashima
    • Masahiro SasakiTetsuya Kawashima
    • G05F1/00
    • H02M1/32H02M1/36H02M3/1588H02M2001/0012Y02B70/1466
    • A switching power supply system controlling switching operations of switching devices by a control circuit to convert an input voltage into a desired output voltage, the system being provided with a under voltage lock out circuit including: an input voltage detection unit detecting an input voltage and producing an input voltage digital signal corresponding to the input voltage Vin; and a voltage level comparison unit carrying out digital comparison of the input voltage digital signal with each of two voltage detection level data and outputting the results of the comparisons as an output signal, in which by changing voltage detection level data stored in two registers, desired voltage detection levels and hysteresis characteristic are easily actualized.
    • 一种开关电源系统,其通过控制电路来控制开关器件的开关动作,将输入电压转换成期望的输出电压,所述系统配备有欠压锁定电路,包括:输入电压检测单元,检测输入电压并产生 对应于输入电压Vin的输入电压数字信号; 以及电压电平比较单元,对输入电压数字信号与两个电压检测电平数据中的每一个进行数字比较,并输出比较结果作为输出信号,其中通过改变存储在两个寄存器中的电压检测电平数据为期望的 电压检测电平和滞后特性容易实现。