Electrosurge failsafe system
First Claim
1. In an electrosurge generator energized by a power supply, and producing an output voltage of a desired level, an improvement comprisinga failsafe circuit for preventing an excessive high output voltage from the electrosurge generator resulting from a failure therein,said failsafe circuit including voltage detection means coupled in parallel across the voltage output of the electrosurge generator for detecting an excessive high output voltage of at least a predetermined threshold, anda switching circuit means activated by said detection means and connected in parallel across the power supply for short circuiting the power supply without diverting the output current to flow therethrough, thereby removing the power supplied from the power supply to the electrosurge generator.
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Abstract
An electrosurge generator, which is energized by a power supply to producen output voltage of a desired level, includes a failsafe system at its output to prevent any excessive high DC voltage output which may result from a failure in the electrosurge generator. The failsafe system has a detection element coupled to the output of the electrosurge generator which detects any output above a predetermined threshold. A switching circuit is activated by the detection element. The switching circuit is connected across the power supply, and when activated, removes the power supplied from the power supply to the electrosurge generator.
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Citations
10 Claims
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1. In an electrosurge generator energized by a power supply, and producing an output voltage of a desired level, an improvement comprising
a failsafe circuit for preventing an excessive high output voltage from the electrosurge generator resulting from a failure therein, said failsafe circuit including voltage detection means coupled in parallel across the voltage output of the electrosurge generator for detecting an excessive high output voltage of at least a predetermined threshold, and a switching circuit means activated by said detection means and connected in parallel across the power supply for short circuiting the power supply without diverting the output current to flow therethrough, thereby removing the power supplied from the power supply to the electrosurge generator.
Specification