公开(公告)号：WO2007002853A2

公开(公告)日：2007-01-04

申请号：PCT/US2006/025428

申请日：2006-06-28

Applicant: TERIDIAN SEMICONDUCTOR CORPORATION ,  HERSHBARGER, Russell

Inventor： HERSHBARGER, Russell

IPC: G01R19/00

CPC classification number: H03K4/48

Abstract: A high speed ramp generator is presented. The high speed ramp generator is advantageous over the prior art because it provides a ramp response without the delay incident with a simple integrator approach. A closed loop system generates a continuous ramp and, in an open loop manner, subtracts a mirror of the current ramp from itself. A switch is provided which when open, triggers an immediate current ramp output that is not dependent on the amplifier or any other component of prior art feedback circuits. Two such ramp generators may be used in tandem to provide alternating portions of a precision ramp signal, such as may be used to cancel the magnetization current induced in the primary of an isolation transformer.

Abstract translation: 提出了一种高速斜坡发生器。 高速斜坡发生器比现有技术更有优势，因为它提供了斜坡响应，而没有通过简单的积分器方法发生延迟。 闭环系统产生连续斜坡，并以开环方式从其自身中减去电流斜坡的反射镜。 提供了一种开关，其在打开时触发不依赖放大器或现有技术反馈电路的任何其它部件的立即电流斜坡输出。 两个这样的斜坡发生器可以串联使用以提供精确斜坡信号的交替部分，例如可用于抵消在隔离变压器的初级中感应的磁化电流。

公开(公告)号：WO2007002825A2

公开(公告)日：2007-01-04

申请号：PCT/US2006/025362

申请日：2006-06-28

Applicant: TERIDIAN SEMICONDUCTOR CORPORATION ,  HERSHBARGER, Russell

Inventor： HERSHBARGER, Russell

IPC: H04B3/00

CPC classification number: H01F27/42 ,  G01R33/025 ,  H01F2019/085 ,  H04L5/14 ,  H04L25/0266 ,  H04L25/0268

Abstract: A feedback method and apparatus for cancellation of magnetizing inductance current are presented. A voltage driver applies a voltage signal to a primary of a transformer. Feedback apparatus detect changes in the voltage driver output current that are attributable to magnetizing inductance current. Changes in output current are used to obtain a current error, which is integrated to control a current ramp generator. The output of the current ramp generator is applied to the transformer primary as a compensating current for canceling the magnetizing inductance current.

Abstract translation: 介绍了一种用于消除磁化电感电流的反馈方法和装置。 电压驱动器将电压信号施加到变压器的初级。 反馈装置检测归因于励磁电感电流的电压驱动器输出电流的变化。 使用输出电流的变化来获得电流误差，其被集成以控制电流斜坡发生器。 电流斜坡发生器的输出作为补偿电流施加到变压器初级以消除励磁电感电流。

公开(公告)号：WO2007005825A2

公开(公告)日：2007-01-11

申请号：PCT/US2006/025969

申请日：2006-06-30

Applicant: TERIDIAN SEMICONDUCTOR CORPORATION ,  HERSHBARGER, Russell

Inventor： HERSHBARGER, Russell

IPC: H04B3/00

CPC classification number: H04L25/0266 ,  H04L25/0278 ,  H04L25/493

Abstract: Active rectification with load impedance switching for communication across a pulse transformer is presented. Load impedance switching is used for communicating data from the secondary side of the transformer to the primary side during data frames. During power frames, the load impedance is switched to a capacitor for the storage of charge from received power pulses, which may then be converted into a power source. The active rectifier circuit is configurable to accommodate different power requirements and transformer characteristics, and may be implemented with half -wave or full-wave configurations. In active mode, switches are enabled to short out diodes such that diode voltage losses are overcome in the recovered power supply voltage.

Abstract translation: 介绍了负载阻抗切换对脉冲变压器通信的主动整流。 负载阻抗切换用于在数据帧期间将数据从变压器的次级侧传送到初级侧。 在功率框架期间，负载阻抗被切换到用于从接收的功率脉冲存储电荷的电容器，然后可以将其转换成电源。 有源整流电路可配置为适应不同的功率要求和变压器特性，并且可以用半波或全波构造来实现。 在有源模式下，开关使能二极管短路，从而在恢复的电源电压中克服二极管电压损耗。

公开(公告)号：WO2007002826A2

公开(公告)日：2007-01-04

申请号：PCT/US2006/025363

申请日：2006-06-28

Applicant: TERIDIAN SEMICONDUCTOR CORPORATION ,  FUKAHORI, Kiyoshi ,  HERSHBARGER, Russell

Inventor： FUKAHORI, Kiyoshi ,  HERSHBARGER, Russell

IPC: H04B3/00

CPC classification number: H04L25/0266 ,  H01F27/42 ,  H01F2019/085 ,  H04L5/1423 ,  H04L25/0282 ,  H04L25/4904 ,  H04L25/4908

Abstract: A method and apparatus for detection of load impedance modulation as a result of communication of data from the secondary to the primary side of a transformer are presented. The load impedance on the secondary of the transformer barrier is modulated differentially using data to be communicated across the barrier. A detection circuit on the primary side isolates the load current from the magnetizing current in the primary. The load current is subsequently integrated over two consecutive Manchester periods and the integrated value from the first Manchester period is compared against that of the second period thereby recovering the receive data.

Abstract translation: 提出了一种用于检测负载阻抗调制的方法和装置，作为从变压器的次级到初级侧的数据通信的结果。 使用跨屏障通信的数据，对变压器势垒次级的负载阻抗进行差分调制。 初级侧的检测电路将负载电流与初级侧的励磁电流隔离。 负载电流随后在两个连续的曼彻斯特周期内积分，并将第一个曼彻斯特周期的积分值与第二个周期的积分值进行比较，从而恢复接收到的数据。

公开(公告)号：WO2007002850A3

公开(公告)日：2007-01-04

申请号：PCT/US2006/025420

申请日：2006-06-28

Applicant: TERIDIAN SEMICONDUCTOR CORPORATION ,  HERSHBARGER, Russell

Inventor： HERSHBARGER, Russell

IPC: G08C19/16 ,  G08C15/12

Abstract: Encoding of a dual mode digital signal for transfer using a dual mode super source follower circuit to drive the signal across a pulse transformer is presented. The dual mode signal comprises data in one mode and power/ control in the other mode. In the power/ control mode the magnitude of the signal pulses are greater than the magnitude of the data pulses. Thus, the current sinking deficiencies of the super source follower may introduce waveform irregularities when transitioning from the high of the power pulse to the high of the data pulse. An encoding method described herein uses a return to zero scheme to avoid such waveform irregularities during power to data transitions.

公开(公告)号：WO2007002827A2

公开(公告)日：2007-01-04

申请号：PCT/US2006/025364

申请日：2006-06-28

Applicant: TERIDIAN SEMICONDUCTOR CORPORATION ,  HERSHBARGER, Russell ,  FUKAHORI, Kiyoshi

Inventor： HERSHBARGER, Russell ,  FUKAHORI, Kiyoshi

IPC: H04B3/00

CPC classification number: H04B3/548 ,  H04B2203/5408 ,  H04J7/00 ,  H04L5/14 ,  H04L7/033 ,  H04L7/046 ,  H04L25/0266 ,  H04L25/0284 ,  H04L25/4904 ,  H04M11/066

Abstract: A method and apparatus for synchronizing the secondary side to the primary side of a transformer circuit are presented. A preamble which consists primarily of data pulses and inverted power pulses is used initially to obtain the parameters for and to set up a phase locked loop. For example, an edge-triggered one-shot circuit can be used to generate a reference clock from the preamble until lock is detected. Once the phase lock loop locks onto the clock, normal communication between the primary and secondary commences. The phase lock loop, which is in the secondary, is kept in phase during normal communication using valid Manchester edges from the transmit signal.

Abstract translation: 给出了用于使次级侧与变压器电路的初级侧同步的方法和设备。 主要由数据脉冲和反相功率脉冲组成的前导码最初用于获得参数并设置锁相环。 例如，可以使用边沿触发的单触发电路从前导码生成参考时钟，直到检测到锁。 一旦锁相环锁定到时钟上，初级和次级之间的正常通信就开始了。 在正常通信期间，使用来自发射信号的有效曼彻斯特边沿，保持在次级的锁相环路保持同相。