| 摘要 |
A discharging device is used to reduce the voltage level at a bootstrap point in an electronic circuit such as a shift register circuit. In such a circuit, a first transistor in a conducting state receives an input pulse and conveys it to the gate terminal of a second transistor, causing the second transistor to be in a conducting state. This gate terminal is known as a bootstrap point. After receiving the input pulse, an output pulse is produced at one drain/source terminal of the second transistor. During the time period of the output pulse, the first transistor is in a non-conducting state and the voltage level at the bootstrap point is high, imposing a stress upon the first transistor. A discharging circuit consisting of at least one transistor is coupled to the bootstrap point in order to reduce the voltage level at the output pulse period.
|
