EEVblog 1620 - Deye Solar Hybrid Inverter EXTREME TEARDOWN

Extreme teardown of the Deye SUN-5K-SG04LP1 5kW hybrid solar inverter. Will it contain the quality components claimed? Also a topology reverse engineering of all the stages. 00:00 - A generous and coincidental donation from a viewer 00:37 - We have the brochure, let's check the claims! 02:44 - Front panel PCB 03:46 - The gigantic heatsink 04:44 - Nippon Chemi-Con Capacitors? REALLY? 05:54 - Heatsunk and potted inductors and transformer teardown 10:19 - Main PCB's and the confusing layout 12:53 - The fused battery input 13:37 - Are the MOSFET's and IGBT's as advertised? 15:10 - SMD high current links for PnP benefits 16:14 - Detailed circuit topology schematic reverse engineering 18:29 - Earth connection testing 19:07 - MOSFET vs IGBT 19:51 - Grid side IGBT switching and tri-level switching 20:46 - Solar Panels are capacitors to earth and that screws the CMRR 21:34 - HERIC switching topology and patent lawsuits! 23:50 - Grid and Load connections 25:07 - The battery bidirectional DC-DC converter 28:14 - H-Bridge and parallelism 30:14 - Switching drive stages 31:25 - Main processor PCB and a TI DSP ripoff? 32:51 - Redundant backup DSP controller? 34:40 - Genrator and Load conection relay switching 35:49 - Panasonic Relays? WHERE? 37:02 - User Connection PCB 38:25 - Conclusion Datasheets: https://ift.tt/p7hw9BP https://ift.tt/bAgLWmc https://ift.tt/lkTLwpy https://ift.tt/8Gc3dBv ADVchip DSP: https://ift.tt/TJlWusS AVP32F335 DSP: https://ift.tt/1A0Gd3W Fraunhofer ISE Successful in Patent Infringement Process for HERIC Inverter Technology: https://ift.tt/RX20Epm Forum: If you find my videos useful you may consider supporting the EEVblog on Patreon: https://ift.tt/oUPs3YO Or with crypto: BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4 USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF Web Site: http://www.eevblog.com Store: https://eevblog.store/ Other channels: EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover T-Shirts: https://ift.tt/Q1RXHYd #ElectronicsCreators #solarinverter #Teardown

source https://www.youtube.com/watch?v=n0_cTg36A2Q