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EEVblog 1778 - Product Power Measurement Masterclass (µTimer Part 3) Analytics Table
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About EEVblog 1778 - Product Power Measurement Masterclass (µTimer Part 3)
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Part 3 of the µTimer project. Measuring the power consumption of the LCD leads to a masterclass in power measurement and related traps. 00:00 - Part 3 of the uTimer project 02:36 - LCD Discontinued!? Was GoodDisplay, now Osptek https://www.aliexpress.com/item/1005012678062314.html 04:26 - LCD power measurement with the Otti Arc 05:50 - It still works with no power pin? What is this black magic! 07:20 - Using the Ott Arc power profiler https://www.qoitech.com/otii-arc-pro/ 09:30 - Don't confuse LCD updating rate with data update rate 10:41 - ST7305 LCD driver datasheet 11:35 - LCD Tearing mode explained 12:22 - Low power 1Hz update power measurements 14:11- LCD datasheet 17:11 - Logic Analyser inspection 19:45 - Trap for young players! Yes, it's Grounds, again... 22:06 - The downside of high side current measurement, and a solution 23:52 - Using the oscilloscope to measure low power circuit current 27:18 - The trick to picking the right current shunt value 30:19 - Capturing the Reset current waveform 31:45 - Dynamically changing shunt resistor values is a thing 32:11 - Why not use the uCurrent? Another trap for young players! 33:34 - You can't just use your tool willy-nilly 36:20 - The trick to doing mixed signal analysis with high side current shunts 39:07 - Conclusion Related videos: Part 1: https://www.youtube.com/watch?v=KhQn-RUDZ3I Part 2: https://www.youtube.com/watch?v=YCvDl0oXOSY x1 Scope Probes Explained: https://www.youtube.com/watch?v=OiAmER1OJh4 No power pin, no problem! https://www.youtube.com/watch?v=2yFh7Vv0Paw Datasheets: Sitronix ST7305 https://yuyinglcd.com/strapi-uploads/ST_7305_V0_2_d0b99d9cdb.pdf YDP290H004-V3 LCD https://yuyinglcd.com/products/1/17/560 YDP290H001-V3 LCD https://admin.osptek.com/uploads/YDP_290_H001_V3_1dcc5ea9e3.pdf Old GoodDisplay https://www.good-display.com/product/454.html Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog Other channels: EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover #ElectronicsCreators
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