Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Variable power control for process control instruments










Image Number 8 for United States Patent #6686831.

A process control instrument includes a sensor/actuator portion and a transmitter portion connected to the sensor/actuator portion. The transmitter portion is operable to communicate with other process variable transmitters through a communication network. The transmitter includes a processing module and a power module operable to generate a power output supplied to at least the transmitter portion, wherein the power module is operable to adjust the power output based on a power control signal. Moreover, the power control signal may be generated by a controller device remote from the process control instrument and communicated to the process control instrument over the communication network. Additionally, the power module includes a power control module for adjusting the power output. This power control module includes an amplitude limiter operable to limit a power input to the process control instrument according to a controllable amplitude limit, and a power rate of change unit operable to limit a rate of change of the power input to the process control instrument according to a controllable adjustment rate limit.








 
 
  Recently Added Patents
Light barrier and method for detecting objects
Methods of enhancing diabetes resolution
Electronic circuit having shared leakage current reduction circuits
Consistent retention and disposition of managed content and associated metadata
Economic filtering system for delivery of permission based, targeted, incentivized advertising
Multi-room user interface
Jacket liner
  Randomly Featured Patents
Double document detection apparatus and a method for conducting the same
Method and system for identifying and tracking reusable packing crates
Ethernet virtualization using a network packet alteration
Cylinder-shaped vibration isolator
Cache line replacement policy enhancement to avoid memory page thrashing
Apparatus and methods for handling trading data
Shock absorber
System and method for providing multi-carrier tracking of wireless devices during an emergency
Optical termination unit
Method and apparatus for manipulating data within a remote database in a multiple tier environment