학술논문
DC to 1 gigahertz multikilovolt voltage probe
Document Type
Conference
Author
Source
Conference Record of the Twenty-Sixth International Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Power Modulator Symposium and High Voltage Workshop Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International. :341-343 2004
Subject
Language
Abstract
We describe here the design and electrical model of a resistive-capacitive voltage divider for very wide bandwidth high voltage measurements. The divider smoothly transitions from a resistive topology at low frequencies to a capacitive topology at high frequencies, giving it a very flat attenuation curve from DC to a 3dB point at 1.0 GHz. The design is novel, employing a combination of distributed and lumped element compensation. The divider, while compact, can handle voltages up to 15 kV, limited to short pulses by power dissipation. Frequency range is ultimately limited by the self resonance of lumped capacitors and also by resonance of the high voltage interconnect with distributed input capacitance. The voltage divider has a 1000x voltage ratio with output to 50-ohm termination. This probe's broad range of functionality makes it a practical bench-top scope probe or a permanent fixture within pulse generators