公开(公告)号：US20070153890A1

公开(公告)日：2007-07-05

申请号：US11634131

申请日：2006-12-04

申请人： Norbert Huber ,  Franz Ritz ,  Hans Lengenfelder

发明人： Norbert Huber ,  Franz Ritz ,  Hans Lengenfelder

IPC分类号： H03K7/08

CPC分类号： H02M7/5395

摘要： A method is for the pulse width modified control of switching elements in a frequency converter having N phases, in which for each phase the control pulses of the switching elements are derived from, in each case, one P-periodic control voltage. The P-periodic control voltages correspond to a superposition of sinusoidal control voltages of period P, that are shifted by 360/N degrees with respect to one another, by an N*P-periodic offset voltage that applies to all phases. The offset voltage is selected such that, at any time, exactly one of the P-periodic control voltages lies effectively on a modulating limit for the derivation of the switching pulses. Using this method, the excitation of resonances at the star point of a connected load may be clearly reduced.

摘要翻译： 一种用于在具有N相的频率转换器中的开关元件的脉冲宽度修改控制的方法，其中对于每相，开关元件的控制脉冲在每种情况下都衍生自一个P周期性控制电压。 P周期性控制电压对应于周期P的正弦控制电压的叠加，其相对于彼此移位360 / N度，通过适用于所有相的N * P周期性偏移电压。 选择偏移电压使得在任何时候，正周期性控制电压中的仅一个有效地落在用于导出开关脉冲的调制限制上。 使用这种方法，可以明显地减少连接负载的星点处的谐振的激发。

公开(公告)号：US06219259B1

公开(公告)日：2001-04-17

申请号：US09457252

申请日：1999-12-08

申请人： Norbert Huber ,  Franz Ritz

发明人： Norbert Huber ,  Franz Ritz

IPC分类号： H02M545

CPC分类号： H02M5/4585

摘要： A circuit arrangement allows a converter to be operated with supply voltages oscillating within broad limits. The intermediate circuit voltage of the converter is controlled to avoid unacceptably high currents, so that the intermediate circuit voltage is always higher than the peak value of the rectified supply voltage. For at least this purpose, the peak value of the rectified supply voltage is determined and compared to that of the intermediate circuit voltage. If the intermediate circuit voltage is less than the peak value of the rectified supply voltage, the intermediate circuit voltage is increased to exceed the originally set setpoint value. This prevents free-wheeling diodes from becoming conductive at undesirable times and causing excessive currents.

摘要翻译： 电路布置允许转换器在宽范围内振荡的电源电压下工作。 控制转换器的中间电路电压以避免不可接受的高电流，使得中间电路电压总是高于整流电源电压的峰值。 为了至少这个目的，确定整流电源电压的峰值并将其与中间电路电压的峰值进行比较。 如果中间电路电压小于整流电源电压的峰值，则中间电路电压增加到超过初始设定的设定值。 这防止续流二极管在不期望的时间变得导电并引起过大的电流。

公开(公告)号：US07215041B2

公开(公告)日：2007-05-08

申请号：US10656924

申请日：2003-09-05

申请人： Norbert Huber ,  Franz Ritz

发明人： Norbert Huber ,  Franz Ritz

IPC分类号： H02J1/06 ,  H02J15/00

CPC分类号： H02M5/458 ,  H02M7/5387

摘要： A charging circuit for a frequency converter having a first feed line with a first constant current source therein and a second feed line with a second constant current source therein. An intermediate circuit capacitor connected between the first feed line and the second feed line, wherein the first constant current source that limits a charging current of the intermediate circuit capacitor. An electronic control device that controls both the first constant current source and the second constant current source in parallel.

摘要翻译： 一种用于变频器的充电电路，具有其中具有第一恒流源的第一馈电线和其中具有第二恒流源的第二馈电线。 连接在第一馈电线和第二馈电线之间的中间电路电容器，其中第一恒流源限制中间电路电容器的充电电流。 一种同时控制第一恒定电流源和第二恒定电流源的电子控制装置。

公开(公告)号：US06747458B2

公开(公告)日：2004-06-08

申请号：US10259195

申请日：2002-09-27

申请人： Norbert Huber ,  Franz Ritz

发明人： Norbert Huber ,  Franz Ritz

IPC分类号： G01R3108

CPC分类号： H02M1/32 ,  G01R31/025 ,  H02H7/1216 ,  H02H11/005

摘要： A method for ground potential monitoring of a rectifier drive, having a capacitor which is connected with a voltage source via a switching device. The method including applying a test voltage between a connector of a capacitor of a rectifier drive and a mass or ground potential prior to connecting the rectifier drive with a voltage source that is connected with the capacitor via a switching device. The method also includes releasing the switching device if a potential of the connector changes by a predetermined amount after the applying the test voltage.

摘要翻译： 一种用于整流器驱动器的地电位监测的方法，具有经由开关装置与电压源连接的电容器。 该方法包括在将整流器驱动器与经由开关装置与电容器连接的电压源连接之前，在整流器驱动器的电容器的连接器与质量或接地电位之间施加测试电压。 该方法还包括如果在施加测试电压之后连接器的电位变化预定量，则释放开关装置。

公开(公告)号：US06487785B1

公开(公告)日：2002-12-03

申请号：US09596030

申请日：2000-06-15

申请人： Franz Ritz

发明人： Franz Ritz

IPC分类号： G01B503

CPC分类号： G01B11/007

摘要： A circuit for adjusting a switching threshold of a touch probe, which has a touch element that can be deflected out of a position of repose and which upon a deflection of the touch element out of its position of repose causes a defined change in a measurable system parameter and outputs a switching signal when the value of the system parameter exceeds the switching threshold. The circuit includes a device for measuring the measurable system parameter, an electrical circuit for ascertaining a reference value from which the switching threshold is determinable and an incremental corrector that changes the value of the measurable reference value to the value of the measurable system parameter at the position of repose of the touch element, in which the switching threshold is determinable from the reference value.

摘要翻译： 一种用于调整触摸探针的切换阈值的电路，其具有能够偏离休眠位置的触摸元件，并且在触摸元件偏离其休止位置之后导致可测量系统中的定义的变化 参数，当系统参数值超过切换阈值时，输出切换信号。 该电路包括用于测量可测量的系统参数的装置，用于确定切换阈值可由其确定的参考值的电路和将可测量参考值的值改变为可测量系统参数的值的增量校正器 触摸元件的休止位置，其中切换阈值可从参考值确定。

公开(公告)号：US5109223A

公开(公告)日：1992-04-28

申请号：US343929

申请日：1989-04-26

申请人： Walter Schmitt ,  Franz Ritz

发明人： Walter Schmitt ,  Franz Ritz

IPC分类号： G01B7/00 ,  B23Q1/00 ,  B23Q17/00 ,  G01B7/012 ,  G08C19/00

CPC分类号： B23Q17/00 ,  B23Q1/0009 ,  G01B7/012 ,  Y10T307/786

摘要： An apparatus is provided for inductive transfer of the scanning signal from a sensing head to a machine body. The apparatus includes cooperating inductive coupling elements between a receiving lug of the sensing head and the spindle of the machine. Cooperating coupling elements for inductive coupling are also provided between the spindle and the machine body. The coupling element of the receiving lug includes a coil with a ferromagnetic core. The spindle includes a second cooperating coil lying opposite to the receiving-lug coil which also includes a ferromagnetic core. The scanning signal is conducted from the detector to the coil in the receiving lug and is transferred inductively to the spindle. The scanning signal then passes over a transfer coil to a receiving coil. The transfer coil and receiving coil are configured such that the signal is transferred independently of rotation of the spindle relative to the machine body.

摘要翻译： 提供了一种用于将扫描信号从感测头感应传递到机体的装置。 该装置包括在感测头的接收凸耳和机器主轴之间的协作的感应耦合元件。 主轴和机体之间也设有用于电感耦合的合作联轴器。 接收片的耦合元件包括具有铁磁芯的线圈。 主轴包括与接收耳线圈相对的第二配合线圈，该线圈还包括铁磁芯。 扫描信号从检测器传导到接收凸耳中的线圈，并被感应地传递到主轴。 然后扫描信号经过传递线圈到达接收线圈。 传送线圈和接收线圈被构造成使得信号被独立于主轴相对于机体的转动传送。

公开(公告)号：US4594579A

公开(公告)日：1986-06-10

申请号：US459374

申请日：1983-01-20

申请人： Walter Schmitt ,  Franz Ritz

发明人： Walter Schmitt ,  Franz Ritz

IPC分类号： G08C19/38 ,  G01B7/00 ,  G01B21/00 ,  G01D3/06 ,  G01D5/245 ,  G08C19/16

CPC分类号： G01D3/063 ,  G01D5/2457

摘要： An incremental length measuring instrument generates analog scanning signals S.sub.1, S.sub.2 with a certain period P which are applied to a comparator in conjunction with two reference signals R.sub.S1, R.sub.S2. The measuring instrument causes the scanning signals S.sub.1, S.sub.2 to change as a function of relative displacement to two components of the measuring instrument. The comparator generates an analog control signal S.sub.D as a function of the difference of the momentary values of the signals applied as inputs to the comparator. The analog control signal S.sub.D is applied as an input to a signal generator which includes an oscillator. The oscillator generates a number of pulses in dependence on the momentary value of the analog control signal S.sub.D. These pulses cause the reference signals R.sub.S1, R.sub.S2 to be modified by the signal generator. In addition, the pulses are fed in a direction dependent manner into an incremental counter which includes a numerical display. The counter maintains a count which is displayed as an indication of the relative position of the two components of the measuring instrument. The reference signals R.sub.S1, R.sub.S2 are modified by the pulses generated by the oscillator until their momentary values correspond to the momentary values of the scanning signals S.sub.1, S.sub.2. When this occurs, the difference between these momentary values is zero and the comparator no longer delivers the control signal S.sub.D, thereby causing the pulse generation by the oscillator to cease. When this happens, the displayed counter state on the incremental counter and the reference signals R.sub.S1, R.sub.S2 remain in their momentary states.

摘要翻译： 增量长度测量仪器产生具有一定周期P的模拟扫描信号S1，S2，该周期P结合两个参考信号RS1，RS2施加到比较器。 测量仪器使扫描信号S1，S2作为与测量仪器的两个部件的相对位移的函数而改变。 比较器产生模拟控制信号SD作为作为输入到比较器的信号的瞬时值的差的函数。 模拟控制信号SD作为输入施加到包括振荡器的信号发生器。 振荡器根据模拟控制信号SD的瞬时值产生多个脉冲。 这些脉冲使参考信号RS1，RS2被信号发生器修改。 此外，脉冲以方向依赖的方式馈送到包括数字显示的增量计数器中。 计数器保持计数，显示为测量仪器的两个部件的相对位置的指示。 参考信号RS1，RS2由振荡器产生的脉冲修正，直到其瞬时值对应于扫描信号S1，S2的瞬时值为止。 当这种情况发生时，这些瞬时值之间的差为零，并且比较器不再传送控制信号SD，从而导致振荡器产生的脉冲停止。 当这种情况发生时，增量计数器上显示的计数器状态和参考信号RS1，RS2保持在其瞬时状态。