-
公开(公告)号：US07126368B2
公开(公告)日：2006-10-24
申请号：US10942269
申请日：2004-09-16
IPC分类号： G01R31/34
CPC分类号： G01R31/343 , H02H7/0833 , H02H11/005
摘要： A system and method detects coil-to-coil faults in an electric motor having a plurality of coils. The method includes applying a square wave signal to a first coil of the motor, connecting a capacitor and a resistor between ground potential and a second coil of the motor, applying the coil output voltage to an amplifying and peak detecting circuit, applying an output of the amplifying and peak detecting circuit to the input of the control unit and, after a delay period, generating a motor fault signal if the coil output voltage is below a predetermined threshold. The square wave signal is amplified by a circuit which prevents transmission of voltage signals from the coils to the output of the control unit during normal operation of the motor.
摘要翻译： 一种系统和方法检测具有多个线圈的电动机中的线圈到线圈故障。 该方法包括将方波信号施加到电动机的第一线圈，将电容器和电阻器连接到电动机的地电位和第二线圈之间，将线圈输出电压施加到放大和峰值检测电路， 放大和峰值检测电路连接到控制单元的输入，并且在延迟周期之后，如果线圈输出电压低于预定阈值，则产生电动机故障信号。 方波信号由电路放大，该电路在电动机的正常运行期间防止电压信号从线圈传递到控制单元的输出。
-
2.发明授权Method and apparatus for stimulating power line carrier injection with reactive oscillation 有权用反应振荡刺激电力线载波注入的方法和装置公开(公告)号：US08035507B2
公开(公告)日：2011-10-11
申请号：US12259859
申请日：2008-10-28
CPC分类号： H04B3/54 , H04B2203/5412
摘要： Stimulating power line carrier injection with reactive oscillation comprises exciting a tank circuit to oscillate at the carrier frequency by sinking pulses of current between one node of a capacitor in the tank circuit and the other node of the capacitor. A power transformer is connected to a distribution system to inject a power line carrier onto the power line. An excitation circuit sinks short pulses of current between one node of a capacitor and the other node of the capacitor that is connected in a tank circuit arrangement with an inductor and the secondary winding of the power transformer. The tank circuit oscillates at the frequency of the excitation pulses if the resonant frequency of the tank circuit is close to the frequency of excitation. The oscillating current is coupled onto the power line system through the power transformer. The phase of the power line carrier signal is shifted by shifting the phase of the excitation pulses.
摘要翻译： 用反应振荡刺激电力线载波注入包括通过将在电路中的电容器的一个节点和电容器的另一个节点之间的电流脉冲相冲突来激励振荡电路以载波频率振荡。 电力变压器连接到配电系统，以将电力线载体注入到电力线上。 励磁电路吸收电容器的一个节点和电容器的另一个节点之间的短脉冲电流，该电容器以与电感器和电力变压器的次级绕组的电路布置连接。 如果振荡电路的谐振频率接近激励频率，则振荡电路以激励脉冲的频率振荡。 振荡电流通过电源变压器耦合到电力线系统上。 通过移动激励脉冲的相位来移动电力线载波信号的相位。
-
公开(公告)号：US20080084672A1
公开(公告)日：2008-04-10
申请号：US11545635
申请日：2006-10-10
IPC分类号： H05K7/20
CPC分类号： H05K7/20445 , H01L23/3675 , H01L2924/0002 , H01L2924/00
摘要： An electrical assembly including a housing having an inner surface. At least one mounting feature protrudes from the inner surface. At least one heat sink is inserted onto the at least one mounting feature. At least one electrical component is in thermal contact with a portion of the at least one heat sink.
摘要翻译： 一种电气组件，包括具有内表面的壳体。 至少一个安装特征从内表面突出。 至少一个散热器被插入至少一个安装特征。 至少一个电气部件与所述至少一个散热器的一部分热接触。
-
公开(公告)号：US20060055437A1
公开(公告)日：2006-03-16
申请号：US10942234
申请日：2004-09-16
IPC分类号： H03B1/00
CPC分类号： H03F3/3066
摘要： A driver circuit is connected between an input and an output. The driver circuit includes a first stage which includes a first pnp transistor Q1 and a first npn transistor Q2. The driver circuit also includes a second stage which includes a second pnp transistor Q3 and a second npn transistor Q4. A supply voltage is connected to the emitters of Q1 and Q3. A ground potential is connected to the emitters of Q2 and Q4. The output is connected to the collectors of Q3 and Q4. The input is connected to the bases of Q1 and Q2 via resistors R1 and R2. The collector of Q1 is connected to the base of Q3. The collector of Q2 is connected to the base of Q4. The collector of Q1 is connected to the collector of Q2 via resistor R3. The first stage prevents transistors Q3 and Q4 from being simultaneously in an ON state.
摘要翻译： 驱动电路连接在输入和输出之间。 驱动器电路包括第一级，其包括第一pnp晶体管Q 1和第一npn晶体管Q 2。 驱动器电路还包括第二级，其包括第二pnp晶体管Q 3和第二npn晶体管Q 4。 电源电压连接到Q 1和Q 3的发射极。 接地电位连接到Q 2和Q 4的发射极。 输出连接到Q 3和Q 4的收集器。 输入端通过电阻R 1和R 2连接到Q 1和Q 2的基极。 Q 1的集电极连接到Q 3的基极。 Q 2的集电极连接到Q 4的基极。 Q 1的集电极经由电阻器R 3连接到Q 2的集电极。 第一级防止晶体管Q 3和Q 4同时处于导通状态。
-
5.发明申请Method and Apparatus for Stimulating Power Line Carrier Injection with Reactive Oscillation 有权用反应振荡刺激电力线载波注入的方法和装置公开(公告)号：US20100102937A1
公开(公告)日：2010-04-29
申请号：US12259859
申请日：2008-10-28
IPC分类号： G05B11/01
CPC分类号： H04B3/54 , H04B2203/5412
摘要： Stimulating power line carrier injection with reactive oscillation comprises exciting a tank circuit to oscillate at the carrier frequency by sinking pulses of current between one node of a capacitor in the tank circuit and the other node of the capacitor. A power transformer is connected to a distribution system to inject power line carrier onto the power line. An excitation circuit sinks short pulses of current between one node of a capacitor and the other node of the capacitor that is connected in a tank circuit arrangement with an inductor and the secondary winding of the power transformer. The tank circuit oscillates at the frequency of the excitation pulses if the resonant frequency of the tank circuit is close to the frequency of excitation. The oscillating current is coupled onto the power line system through the power transformer. The phase of the power line carrier signal is shifted by shifting the phase of the excitation pulses.
摘要翻译： 用反应振荡刺激电力线载波注入包括通过将在电路中的电容器的一个节点和电容器的另一个节点之间的电流脉冲相冲突来激励振荡电路以载波频率振荡。 电力变压器连接到配电系统，以将电力线载体注入电力线。 励磁电路吸收电容器的一个节点和电容器的另一个节点之间的短脉冲电流，该电容器以与电感器和电力变压器的次级绕组的电路布置连接。 如果振荡电路的谐振频率接近激励频率，则振荡电路以激励脉冲的频率振荡。 振荡电流通过电源变压器耦合到电力线系统上。 通过移动激励脉冲的相位来移动电力线载波信号的相位。
-
公开(公告)号：US07589971B2
公开(公告)日：2009-09-15
申请号：US11545635
申请日：2006-10-10
CPC分类号： H05K7/20445 , H01L23/3675 , H01L2924/0002 , H01L2924/00
摘要： An electrical assembly including a housing having an inner surface. At least one mounting feature protrudes from the inner surface. At least one heat sink is inserted onto the at least one mounting feature. At least one electrical component is in thermal contact with a portion of the at least one heat sink.
摘要翻译： 一种电气组件，包括具有内表面的壳体。 至少一个安装特征从内表面突出。 至少一个散热器被插入至少一个安装特征。 至少一个电气部件与所述至少一个散热器的一部分热接触。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.023 秒)
