Sata indicator light adjustment circuit

By combining signal isolation, switch control, and inverting drive modules, the problem of inconsistent initial states of SATA chip indicator lights was solved, realizing a universal design for indicator lights, simplifying hardware design, and improving the user experience of the device.

CN122173371APending Publication Date: 2026-06-09BEIJING HDZX TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING HDZX TECH CO LTD
Filing Date
2026-05-11
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, the initial states of SATA chip indicator lights are not uniform, resulting in poor circuit compatibility, making it impossible to form a universal design, and requiring re-adjustment of peripheral circuits after changing chip manufacturers.

Method used

The system employs a combination of a signal isolation module, a switch control module, and an inverting drive module. The signal isolation module isolates static DC signals, the switch control module responds to dynamic switching signals and outputs high and low level signals, and the inverting drive module performs level shaping to achieve the indicator light being constantly off when powered on and flashing when reading or writing.

Benefits of technology

It achieves compatibility with SATA chips from different manufacturers and models, simplifies the hardware design process, reduces R&D and modification costs, and improves the user experience of the device.

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Abstract

The application discloses a SATA indicator light adjusting circuit. The circuit comprises a signal isolation module, a switch control module and an inverse driving module; an input end of the signal isolation module is connected with an indicator light output end of a SATA chip, and an output end of the signal isolation module is connected with a control end of the switch control module; an output end of the switch control module is connected with an input end of the inverse driving module; an output end of the inverse driving module is connected with an indicator light; the signal isolation module is used for isolating a static direct current signal output by the SATA chip and transmitting a dynamic jump signal corresponding to hard disk reading and writing; the switch control module is used for performing on and off actions according to the dynamic jump signal and outputting corresponding high level signals and low level signals; and the inverse driving module is used for inversely shaping the high level signals and the low level signals and then driving the indicator light to realize the display state of power-on always-off and reading and writing blinking.
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