Patent ID: 6259292
Filing Date: 2001-07-10
Classification: H03K

Abstract:
An inverting hysteretic transistor switch having only three terminals, said three terminals being an input terminal, an output terminal and a ground terminal, said inverting hysteretic transistor switch comprising:a. a first field effect transistor (FET) having a drain terminal, a source terminal and a gate terminal, the source terminal of said first FET being connected to the ground terminal;b. a second field effect transistor (FET) having a drain terminal, a source terminal and a gate terminal, the source terminal of said second FET being connected to the ground terminal and the gate terminal of said second FET being connected to the drain terminal of said first FET;c. a third field effect transistor (FET) having a drain terminal, a source terminal and a gate terminal, the source terminal of said third FET being connected to the ground terminal, the drain terminal of said third FET being connected to the output terminal and the gate terminal of said third FET being connected to the gate terminal of said first FET;d. a first resistor having a first terminal and a second terminal, the first terminal of said first resistor being connected to the input terminal and the second terminal of said first resistor being connected to the drain terminal of said first FET;e. a second resistor having a first terminal and a second terminal, the first terminal of said second resistor being connected to the input terminal and the second terminal of said second resistor being connected to the gate terminal of said first FET; andf. a third resistor having a first terminal and a second terminal, the first terminal of said third resistor is connected to the gate terminal of said first FET and the second terminal of said third resistor is connected to the drain terminal of said second FET.