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An optically coupled power stimulus isolation unit with high voltage and fast rise time output BJMBR
Brasil,R.O.; Leal-Cardoso,J.H..
Recent technological developments have created new devices that could improve and simplify the construction of stimulus isolators. HEXFET transistors can switch large currents and hundreds of volts in nanoseconds. The newer opto-isolators can give a pulse rise time of a few nanoseconds, with output compatible with MOSFET devices, in which delays are reduced to nanoseconds. Integrated DC/DC converters are now available. Using these new resources we developed a new electrical stimulus isolator circuit with selectable constant-current and constant-voltage modes, which are precise and easy to construct. The circuit works like a regulated power supply in both modes with output switched to zero or to free mode through an opto-isolator device. The isolator...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Electrical isolation; Electrical stimulation; Pulse stimulation; Stimulus isolator.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000600013
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