Wisdom Power® Lithium battery Manufacturer BMS Technology Introduction？

Wisdom Power® Lithium battery Manufacturer BMS system

Wisdom Power® Lithium battery Manufacturer BMS test results（1）

Wisdom Power® Lithium battery Manufacturer BMS test results（2）

Marketing company listed issues

★ How to balance BMS, I hope to work under the hardware or software training;

★ How to calculate SOC, (software calculation method) basic principle;

★ Some basic troubleshooting solutions (the various problems and solutions that occur when the Institute of Technology is testing);

★ How does BMS shield and how to avoid interference when loading?

★ (EMS);

★ Technical Institute recommends the basic knowledge of training.

EMC Control Technology – Transmission Channel Suppression

★ Filtering: Eliminate or suppress the disturbance frequency component and cut off the path of the disturbance signal along the signal line or power line.
★ Shielding: Use shields to block or attenuate the transmission of electromagnetic disturbance energy. Grounding: Safety grounding, signal grounding,
★ Lap: Connect between two metal bodies to create a stable low-impedance electrical path to avoid potential differences.

★ wiring:

EMC Control Technology – Space Separation

★ Increase the spatial distance between the source of disturbance and the receiver (sensitive device) and adjust the radiation direction.
★ Mobile communication cellular design (frequency differentiation);
★ In order to meet the electromagnetic compatibility requirements, try to increase the spatial distance between the various devices that make up the system;
★ Limit the minimum spacing of parallel cables and reduce crosstalk in equipment and system wiring;
★ The minimum interval of trace is specified in the PCB.

EMC control technology separated for a time

★ When the source of disturbance is very strong and should not be suppressed by other methods, the time division method is adopted.
★ The interference signal and the useful signal do not overlap or cover at the time. . TDMA/TDM.
★ The aircraft radar transmits a blocking pulse and turns off the alarm. Commonly used in satellites, aircraft carriers, and weapons and equipment.

EMC Control technology electrical isolation

★ Mechanical coupling: electrical mechanical relay.

★ Electromagnetic coupling: transformer, DCDC converter Magnetic isolation.

★ Photoelectric coupling: optical coupling.

Common faults, hidden dangers?

★ Power supply wiring error (***) Acquisition wiring error (*****) Connector or harness connection loose.

★ The system enters the water to cause a short circuit (recoverable / non-recoverable). The acquisition line is connected to the battery box or the switching device (*****). The battery failure causes the BMS to burn out (****) SOC confusion, and the system charges and discharges the affected single battery. Fault, system alarm.

★ BMS standby power consumption / static power consumption is large, battery power consumption light BMS balance strategy error, battery pack one-way deterioration BMS hardware failure.