18517024. POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION simplified abstract (Taiwan Semiconductor Manufacturing Company, Ltd.)
POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION
Organization Name
Taiwan Semiconductor Manufacturing Company, Ltd.
Inventor(s)
Chin-Hua Wen of Toufen Township (TW)
POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION - A simplified explanation of the abstract
This abstract first appeared for US patent application 18517024 titled 'POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION
Simplified Explanation
The patent application describes a post-driver with low voltage operation and electrostatic discharge protection.
- Drive unit includes pull-up and pull-down drivers
- Output node connected for impedance calibration
- Operational amplifier in closed loop configuration with transistors
- Current mirror circuit replicates voltage for impedance calibration
Potential Applications
- Construction industry for driving posts into the ground
- Electronics industry for low voltage applications
Problems Solved
- Prevents damage from electrostatic discharge
- Provides accurate impedance calibration
Benefits
- Low voltage operation
- Electrostatic discharge protection
- Accurate impedance calibration
Original Abstract Submitted
A post-driver with low voltage operation and electrostatic discharge protection is provided. A post-driver structure includes a drive unit including a pull-up driver and a pull-down driver, a pad connected to an external resistance, and an output node connected between the pull-up driver and the pull-down driver. The output node is configured to connect to a comparator for impedance calibration of the drive unit. The post-driver structure also includes an operational amplifier connected to a first transistor and the pad in a closed loop configuration. The operational amplifier is further connected to a second transistor to form a current mirror circuit between the operational amplifier and the drive unit. The current mirror circuit replicates a voltage at the pad with a voltage at the output node for the impedance calibration.
