US Patent Application 17828581. POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION simplified abstract

From WikiPatents
Jump to navigation Jump to search

POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION

Organization Name

Taiwan Semiconductor Manufacturing Company, Ltd.==Inventor(s)==

[[Category: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 17828581 titled 'POST-DRIVER WITH LOW VOLTAGE OPERATION AND ELECTROSTATIC DISCHARGE PROTECTION

Simplified Explanation

The patent application describes a post-driver structure that operates at low voltage and provides electrostatic discharge protection.

  • The post-driver structure includes a drive unit with 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 used for impedance calibration of the drive unit by connecting it to a comparator.
  • An operational amplifier is connected to a first transistor and the pad in a closed loop configuration.
  • The operational amplifier is also connected to a second transistor to form a current mirror circuit between the operational amplifier and the drive unit.
  • The current mirror circuit replicates the voltage at the pad with the voltage at the output node for impedance calibration.
  • The post-driver structure provides low voltage operation and protection against electrostatic discharge.


Original Abstract Submitted

A post-driver with low voltage operation and electrostatic discharge protection. In one embodiment, 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 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 further connected to a second transistor to form a current mirror circuit between the operational amplifier and the drive unit, wherein the current mirror circuit replicates a voltage at the pad with a voltage at the output node for the impedance calibration.

Retrieved from "http://wikipatents.org/index.php?title=US_Patent_Application_17828581._POST-DRIVER_WITH_LOW_VOLTAGE_OPERATION_AND_ELECTROSTATIC_DISCHARGE_PROTECTION_simplified_abstract&oldid=9037"