US 11,990,895 B2
IIC hang link restoration circuit and method based on PCA9511 chip
Bo Jiang, Jiangsu (CN)
Assigned to INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
Appl. No. 18/012,937
Filed by INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
PCT Filed Jun. 30, 2021, PCT No. PCT/CN2021/103368
§ 371(c)(1), (2) Date Dec. 25, 2022,
PCT Pub. No. WO2022/057372, PCT Pub. Date Mar. 24, 2022.
Claims priority of application No. 202010990345.1 (CN), filed on Sep. 18, 2020.
Prior Publication US 2023/0268919 A1, Aug. 24, 2023
Int. Cl. H03K 17/687 (2006.01); G06F 13/40 (2006.01)
CPC H03K 17/687 (2013.01) [G06F 13/405 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An IIC hang link restoration circuit based on a PCA9511A chip, comprising: a PCA9511A chip, an inversion circuit, and an external MOSFET; an IIC bus in the PCA9511A chip comprises a clock line; one end of the PCA9511A chip is connected to a master of the IIC bus, and the other end of the PCA9511A chip is connected to a slave of the IIC bus; the PCA9511A chip is provided with an input interface and an output interface of the clock line and a ready signal interface; one end of the inversion circuit is connected to the ready signal interface, and the other end of the inversion circuit is connected to a gate electrode of the external MOSFET, and a source electrode and a drain electrode of the external MOSFET are connected to the input interface and the output interface of the clock line of the PCA9511A chip.