Loading patent…
AssigneeSuzhou Novosense Microelectronics Co., Ltd.
InventorsQihui Chen, Yun Sheng
Estimating the term…
The present invention provides a common-mode transient suppression protection circuit for a digital isolator, including a modulation circuit, a demodulation circuit and an isolation capacitor connected between the modulation circuit and the demodulation circuit. The modulation circuit includes a modulation circuit front-end and a drive circuit, which are connected in sequence, and a clamping module is arranged in the drive circuit. The protection circuit further includes a linear voltage regulator structure connected with the drive circuit, and a power supply clamp is arranged in the linear voltage regulator structure. By providing the linear voltage regulator structure having the power supply clamp and the drive circuit having the clamping module in the protection circuit, low-voltage devices in the drive circuit can be protected from being damaged by high-voltage signals generated by common-mode transient interference.
A common-mode transient suppression protection circuit for a digital isolator, comprising a modulation circuit, a demodulation circuit, and an isolation capacitor connected between the modulation circuit and the demodulation circuit,
Dependencies are inferred from the claim text.