US 12,439,492 B2
Overvoltage protection integrated in the module temperature protection
Tijmen Cornelis Van Bodegraven, Eindhoven (NL); and Zadok Vitalis Socrates Kroeze, Oss (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 18/578,069
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Jul. 5, 2022, PCT No. PCT/EP2022/068578
§ 371(c)(1), (2) Date Jan. 10, 2024,
PCT Pub. No. WO2023/285208, PCT Pub. Date Jan. 19, 2023.
Claims priority of application No. 21185391 (EP), filed on Jul. 13, 2021.
Prior Publication US 2024/0324083 A1, Sep. 26, 2024
Int. Cl. H05B 45/50 (2022.01); H05B 45/3725 (2020.01)
CPC H05B 45/50 (2020.01) [H05B 45/3725 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A circuit for providing isolated data transfer, the circuit comprising:
a sensor adapted to be coupled to a conversion circuit;
the conversion circuit adapted to use a signal generated by the sensor and an offset voltage to generate in a time sequential manner:
a first voltage level; and
a second voltage level, wherein the second voltage level is larger than the first voltage level,
a voltage to current transformer circuit adapted to convert the first voltage level into a first current level within a current range and the second voltage level into a second current level within the current range, wherein the first current level and the second current level are time sequentially provided to an optocoupler;
the optocoupler adapted to receive time sequentially the first current level and the second current level and to provide an isolated output voltage signal having a first voltage when the first current level is provided to the optocoupler and a second voltage when the second current level is provided to the optocoupler;
an analog to digital converter adapted to receive the isolated output voltage and adapted to provide a digital output voltage; and
a controller coupled to the analog to digital converter, wherein the controller is adapted to derive the signal generated by the sensor from the digital output voltage corresponding to the isolated output voltage received in the time sequential manner.