Title :
1000-V-resistor for ac-dc voltage transfer
Author :
Klonz, M. ; Spiegel, T. ; Laiz, H. ; Kessler, E.
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
The new design of a 1000-V-resistor on a thick AlN substrate with very high heat conductance results in minimum resistor temperature of less than 4 K above ambient. As all the Joule heat is conducted through the substrate to outside heat exchangers the inside electrostatic shield as well as the outer cylinder stay at ambient temperature. This design will result in an optimum ac-dc voltage transfer standard for the step-up from 300 V to 1000 V and frequencies from 20 kHz to 100 kHz.
Keywords :
convertors; heat sinks; resistors; shielding; transfer standards; voltage measurement; 20 to 100 kHz; 300 to 1000 V; AC-DC voltage transfer standard; Joule heat; capacitance; equipotential lines; inside electrostatic shield; minimum resistor temperature; optimum transfer standard design; outer cylinder; outside heat exchangers; planar design; temperature coefficient; thermal converters; thick AlN substrate; transfer resistor design; very high heat conductance; Capacitance; Coatings; Frequency; Heat transfer; Power dissipation; Resistors; Substrates; Temperature distribution; Thermal conductivity; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699960
