Active ESD clamp deactivation

• Main Authors: HINDERER THORSTEN, GLASER ULRICH
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2019
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The invention relates to active ESD clamp deactivation. For example, a circuit includes electrostatic discharge (ESD) protection circuitry, triggering circuitry, transient detection circuitry, and deactivation circuitry. The ESD protection circuitry is coupled between a first rail and a second rail. The triggering circuitry is configured to generate an ESD activation signal when a voltage across the first rail and the second rail exceeds a voltage threshold. The ESD protection circuitry is configured to activate based on the ESD activation signal. The transient detection circuitry is configured to generate a deactivation signal when the voltage across the first rail and the second rail comprises a voltage change over time that is less than a transient threshold. The deactivation circuitryis configured to deactivate the triggering circuitry based on the deactivation signal. 本公开涉及有源ESD钳位去激活。例如，一种电路包括ESD保护电路装置、触发电路装置、瞬态检测电路装置和去激活电路装置。ESD保护电路装置耦合在第一轨和第二轨之间。触发电路装置被配置为当横跨第一轨和第二轨的电压超过电压阈值时生成ESD激活信号。ESD保护电路装置被配置为基于ES