公开(公告)号：EP2236320B1

公开(公告)日：2011-11-23

申请号：EP10006328.8

申请日：2004-08-24

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Buenz, Mark J. ,  Norlien, John A. ,  Kunik, William G. ,  Williams, Wade W. ,  Myhre, Douglas C.

IPC: B60C23/04

CPC classification number: G01P3/44 ,  B60C23/0428 ,  B60C23/043 ,  B60C2200/02 ,  G01P3/48

公开(公告)号：EP2658107A3

公开(公告)日：2016-12-28

申请号：EP13161118.8

申请日：2013-03-26

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Buenz, Mark J. ,  Seidel, Greg

IPC: H02M1/42

CPC classification number: H02M1/42 ,  Y02B70/12 ,  Y10T307/944

Abstract: An example apparatus includes a power-factor correction (PFC) circuit 200 coupleable to a primary load 202 that exhibits a change in resistance with a change in applied voltage, with the respective voltage being a primary-load voltage, and current through the primary load being a primary-load current. The PFC circuit is configured to provide an auxiliary load and control current therethrough, with the respective current being an auxiliary-load current. In this regard, the PFC circuit is configured to control the auxiliary-load current such that the sum of the primary-load current and auxiliary-load current is a substantially-constant proportion of the primary-load voltage, the respective sum being a sum current.

Abstract translation: 示例性装置包括可耦合到主负载202的功率因数校正（PFC）电路200，其在施加电压变化时呈现电阻变化，其中各个电压是初级负载电压，以及通过主负载的电流 作为主负载电流。 PFC电路被配置为提供辅助负载并且控制电流通过其中，相应的电流是辅助负载电流。 在这方面，PFC电路被配置为控制辅助负载电流，使得初级负载电流和辅助负载电流之和是初级负载电压的基本恒定的比例，相应的和是总和 当前。

公开(公告)号：EP2658107A2

公开(公告)日：2013-10-30

申请号：EP13161118.8

申请日：2013-03-26

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Buenz, Mark J. ,  Seidel, Greg

IPC: H02M1/42

CPC classification number: H02M1/42 ,  Y02B70/12 ,  Y10T307/944

Abstract: An example apparatus includes a power-factor correction (PFC) circuit 200 coupleable to a primary load 202 that exhibits a change in resistance with a change in applied voltage, with the respective voltage being a primary-load voltage, and current through the primary load being a primary-load current. The PFC circuit is configured to provide an auxiliary load and control current therethrough, with the respective current being an auxiliary-load current. In this regard, the PFC circuit is configured to control the auxiliary-load current such that the sum of the primary-load current and auxiliary-load current is a substantially-constant proportion of the primary-load voltage, the respective sum being a sum current.

公开(公告)号：EP2236320A1

公开(公告)日：2010-10-06

申请号：EP10006328.8

申请日：2004-08-24

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Buenz, Mark J. ,  Norlien, John A. ,  Kunik, William G. ,  Williams, Wade W. ,  Myhre, Douglas C.

IPC: B60C23/04

CPC classification number: G01P3/44 ,  B60C23/0428 ,  B60C23/043 ,  B60C2200/02 ,  G01P3/48

Abstract: A wireless tire pressure and wheel speed sensing system for an aircraft is provided. The system comprises the following components.
A resonant circuit is mounted to a wheel of the aircraft for monitoring the pressure of a tire mounted to said wheel. The resonant circuit comprises a wire loop of a predetermined inductance.
An interrogating circuit is magnetically coupleable to said resonant circuit and is operative to induce magnetically a variable frequency current in the wire loop of said resonant circuit. The resonant circuit generates a corresponding variable frequency electric field in response to said induced current. The variable frequency electric field includes a resonant frequency commensurate with the pressure of said tire.
A magnetic field altering apparatus is provided for alternating the magnetic coupling between said wire loop and said interrogating circuit to cause a rate of amplitude modulations of said variable frequency electric field commensurate with said wheel speed.
A receiving circuit E-field is coupleable to said resonant circuit and operative to receive the amplitude modulated variable frequency electric field of said resonant circuit and to generate a signal representative thereof.
A first processing circuit is coupled to said receiving circuit for processing the signal to generate a pressure reading of said tire based on the resonant frequency thereof.
A second processing circuit is coupled to said receiving circuit for processing said signal to generate a wheel speed reading based on the rate of amplitude modulations thereof.