High Voltage Control Switch

A method for high voltage switching comprising:

• comparing an input signal to a threshold voltage;
• generating a first high voltage and a first low voltage if the input signal is greater than the threshold voltage;
• generating a second high voltage and a second low voltage if the input signal is less than the threshold voltage;
• detecting a logic input;
• outputting the first high voltage if the logic input is high and the input signal is greater than the threshold voltage;
• outputting the first low voltage if the logic input is low and the input signal is greater than the threshold voltage;
• outputting the second high voltage if the logic input is high and the input signal is less than the threshold voltage;
• and
• outputting the second low voltage if the logic input is low and the input signal is less than the threshold voltage.

A high voltage control switch circuit comprising:

• a ground signal line;
• a sense signal line;
• a Von signal line;
• a Voff signal line;
• a logic signal line;
• an output signal line;
• an inverted output signal line;
• first and second low voltage sources;
• first and second high voltage sources;
• a high voltage controller having a sense input, first and second low voltage inputs, first and second high voltage inputs, a Von output, and a Voff output, wherein the sense input is coupled with the sense signal line, the first and second low voltage inputs are coupled with the first and second low voltage sources respectively, the first and second high voltage inputs are coupled with the first and second high voltage sources respectively, the Von output is coupled with the Von signal line, and the Voff output is coupled with the Voff signal line;
• and
• a control switch having a Von input, a Voff input, a logic input, an output, and an inverted output, wherein the Von input is coupled to the Von signal line opposite the Von output, the Voff input is coupled with the Voff signal line opposite the Voff output, the logic input is coupled with the logic signal line, the output is coupled with the output signal line, and the inverted output is coupled with the inverted output signal line, wherein if the value from the sense input line is greater than a threshold voltage value, the high voltage controller couples the Von output to the first high voltage and couples the Voff output to the first low voltage, wherein if the value from the sense input line is less than the threshold voltage value, the high voltage controller couples the Von output to the second high voltage and couples the Voff output to the second low voltage, wherein if the logic signal is high, the control switch couples the output signal line to the Von signal line and couples the inverted output signal line to an inverted Von signal line, and wherein if the logic signal is low, the control switch couples the output signal line to the Voff signal line and couples the inverted output signal line to an inverted Voff signal line.