Channel: GreatScott!

Category: Science & Technology

Tags: electronicssynchronousinductorconvertercontiniousprojectdosupplysolderdownucfrequencymodefeedbackdiybeginneryourselficupguidecoilefficiencytopologyitgreatscott!microcontrollermeasuremosfetregulatorswitchedfilesdiodeboostgerbertheoryschottkydropcircuitbestnonteenypcbswitchhowcurrentloadbuckconductionpowertutorialmakewürthadvantageemulationsmpsperfboardvoltagecapacitordiscontiniousbeginnerssteptogreatscott

Description: PCBA from $0 (Free Setup, Free Stencil)：jlcpcb.com/AAA Previous video: youtu.be/KE3CjZ0BUFo MOSFET Driver video: youtu.be/8swJ_Bnsgl4 Facebook: facebook.com/greatscottlab Twitter: twitter.com/GreatScottLab Altium Designer: altium.com/yt/greatscott! Support me for more videos: patreon.com/GreatScott?ty=h More project information (schematic, gerber files,....) on Patreon: patreon.com/posts/57544108 Parts list (affiliate links): IR2184 MOSFET driver: s.click.aliexpress.com/e/_AnpUcr amzn.to/3jcxfj5 SS34 Diode: s.click.aliexpress.com/e/_Ac5TCb amzn.to/3AR0G0e 1206 Capacitors: s.click.aliexpress.com/e/_ACG8WT amzn.to/3DX6sPT 1206 Resistors: s.click.aliexpress.com/e/_AmrL3v amzn.to/2XlJX7m IRFB3077 MOSFET: s.click.aliexpress.com/e/_AL7HWB amzn.to/3FUuBbr 100uH Inductor: s.click.aliexpress.com/e/_Aq42ab amzn.to/3vAjOi5 470uF Capacitor: s.click.aliexpress.com/e/_AFCjAJ amzn.to/3aOQHhm PCB Terminal: s.click.aliexpress.com/e/_A8H315 amzn.to/3BVXPV8 In this video I will be showing you how I created a synchronous buck converter. Such a synchronous design comes with one big advantage and that is a better efficiency. Datasheets claim an efficiency of 95% and above which I wanted to confirm by myself. That is why I will not only show you how a normal buck converter functions, but also how to transform it into a synchronous buck converter. Let's get started! Useful websites which were shown/mentioned in the video: we-online.com/web/en/index.php/show/media/07_electronic_components/news_1/blog/midcom_blog_photos/SMPSChart.pdf ti.com/seclit/ug/slyu036/slyu036.pdf maximintegrated.com/en/design/technical-documents/app-notes/6/6129.html techweb.rohm.com/knowledge/acdc/acdc_pwm/acdc_pwm04/3551 monolithicpower.com/en/the-difference-between-ccm-and-dcm-explained ieee.li/pdf/viewgraphs/topology_review_dc_dc_converters.pdf ti.com/lit/ds/symlink/lmq61460-q1.pdf?ts=1634034318661&ref_url=https%253A%252F%252Fwww.ti.com%252Fpower-management%252Fnon-isolated-dc-dc-switching-regulators%252Fstep-down-buck%252Fbuck-converter-integrated-switch%252Foverview.html%253Fgclid%253DEAIaIQobChMIv4Xm99PE8wIVAeztCh3vQAOeEAAYASAAEgIDtfD_BwE%2526gclsrc%253Daw.ds ti.com/lit/an/snva038b/snva038b.pdf fscdn.rohm.com/en/products/databook/datasheet/ic/power/switching_regulator/bd93291efj-e.pdf ti.com/lit/ds/symlink/lm61495.pdf?ts=1634225117018&ref_url=https%253A%252F%252Fwww.ti.com%252Fpower-management%252Fnon-isolated-dc-dc-switching-regulators%252Fstep-down-buck%252Fbuck-converter-integrated-switch%252Foverview.html Thanks to JLCPCB for sponsoring this video. Visit jlcpcb.com to get professional PCBs for low prices. Music: 2011 Lookalike by Bartlebeats 0:00 Why a "Synchronous" Voltage Converter? 1:15 Intro 1:54 Buck Converter Theory 4:09 DIY Buck Converter 5:25 Improving The Buck Converter (Synchronous Design Theory) 6:59 DIY Synchronous Buck Converter 8:16 DCM Problem with the Synchronous Design 9:40 Power/Efficiency Tests