Patent ID: 6078490
Filing Date: 2000-06-20
Classification: C12M,C12N

Abstract:
An electrical control circuit for connection between a high voltage power supply and a high voltage switch assembly and connection across a capacitor and to a ground for controlling discharge from the capacitor through the high voltage switch assembly, comprising:a discharge resistor having a first resistor connection and a second resistor connection, wherein said first resistor connection is connected to a high voltage terminal,a relay which includes a relay input and a normally closed switch having a first switch connection and a second switch connection, wherein said second resistor connection of said discharge resistor is connected to said first switch connection, and wherein said second switch connection is connected to the ground,a voltage divider assembly having a first divider connection connected to the high voltage terminal, a second divider connection connected to the ground, and a third divider connection located between said first and second divider connections, anda voltage comparator assembly which includes a first comparator input connection, a second comparator input connection, and a comparator output connection, wherein said comparator output connection is connected to said relay input, wherein said first comparator input connection is connected to said third divider connection, wherein said first comparator input connection is further connected to a power supply voltage monitoring output, and wherein said second comparator input is connected to a power supply voltage programmed output.