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
System and method for outputting virtual textures in electronic devices
Audio conversation apparatus
Developing device
Managing wear leveling and garbage collection operations in a solid-state memory using linked lists
System and method for stranded file opens during disk compression utility requests
Method and device for surface scanning of a patient
Apparatus and method to simulate a power trip to a disk drive
  Randomly Featured Patents
Cordless electronic thermometer
Clamping device
Doll house
Wrist and ankle secured restraining device
Systems and methods for residue collection
Method and system for providing high availability to computer applications
Arc extinguisher assembly for molded case circuit breaker
Image encoder, image decoder, image encoding method, and image decoding method
Cover member for illuminated pushbutton switch
Method for treating fungal infections