后装仪表电源电路
By combining a DC-DC converter and a low-dropout linear regulator in the power circuit design, the problem of uneven brightness caused by voltage fluctuations in the OLED display under vehicle conditions was solved, achieving stable power supply to the processor and OLED screen, and ensuring reliable instrument display.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DELCO ELECTRONICS INSTR
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, OLED displays are susceptible to EMI and voltage fluctuations in automotive environments, resulting in uneven brightness and difficulty in providing stable power to various electronic components.
The power supply circuit design employs a first DC-DC converter and a second DC-DC converter combined with a low-dropout linear regulator to power the processor and OLED screen respectively. Voltage stability is ensured through SOC power enable circuit and OLED power enable circuit, and voltage sampling is performed using battery and USB power sampling circuits.
It enables stable power supply to electronic components with different power consumption in the vehicle environment, ensuring stable display of OLED screen and normal operation of processor, and avoiding uneven brightness.
Smart Images
Figure CN224520935U_ABST