George R Posted October 7, 2020 Report Share Posted October 7, 2020 I would like to make a 3S 12V Li Ion battery charger using ZY12PDN USB C board. Can anyone advice please? Quote Link to comment Share on other sites More sharing options...
HarryA Posted October 7, 2020 Report Share Posted October 7, 2020 I would think you need a power supply that is USB C compatible and supplies 15 volts like this one perhaps: https://www.amazon.com/ZMI-zPower-Turbo-Power-Adapter/dp/B07D64QLQ1/ref=sxin_10?ascsubtag=amzn1.osa.36fe220c-4964-4c9f-ae33-99b6c0c7c1df.ATVPDKIKX0DER.en_US&creativeASIN=B07D64QLQ1&crid=22R39DEACHL6V&cv_ct_cx=usb+c+wall+charger&cv_ct_id=amzn1.osa.36fe220c-4964-4c9f-ae33-99b6c0c7c1df.ATVPDKIKX0DER.en_US&cv_ct_pg=search&cv_ct_wn=osp-single-source-gl-ranking&dchild=1&keywords=usb+c+wall+charger&linkCode=oas&pd_rd_i=B07D64QLQ1&pd_rd_r=469feb9c-4fd4-4a62-9cee-bd7d3d9bc4b1&pd_rd_w=XpVfQ&pd_rd_wg=6mOQo&pf_rd_p=26c7e498-3189-4918-a321-ec25e32964ce&pf_rd_r=M6B5K23BD7AP9JZRKZ2Q&qid=1602096804&sprefix=USB+-C+charger%2Caps%2C234&sr=1-1-d9dc7690-f7e1-44eb-ad06-aebbef559a37&tag=thewire06oa-20 Plus a charger that has connections for balenced charging: https://www.amazon.com/11-1V-Balance-Lithium-Battery-Protection/dp/B07JMY631D/ref=sr_1_27?dchild=1&keywords=balanced+li+ion+3s+charger&qid=1602101378&sr=8-27 You can program the ZY12PDN to default to 15 volts instead of 5 volts. https://www.youtube.com/watch?v=aIHj3qMRqqE I never found a ZY12PDN datasheet. Quote Link to comment Share on other sites More sharing options...
torpid whale Posted June 9, 2021 Report Share Posted June 9, 2021 Does one need to use anything else (other than the battery controller) between the battery pack and ZY12PDN? because I connected them directly and my charger stopped working altogether. So I added a Boost converter in between the battery and ZY12PDN but ZY12PDN's light flashes, i.e. it charges for maybe 0.5 seconds and stops for 1 second or so. My batter is this one. and I have the correct PD charger. and my boost converter is capable of supporting the needed current. Quote Link to comment Share on other sites More sharing options...
HarryA Posted June 10, 2021 Report Share Posted June 10, 2021 On 6/9/2021 at 10:47 AM, torpid whale said: My batter is this one. and I have the correct PD charger. and my boost converter is capable of supporting the needed current. Can you provide a block diagram of your set up? You speak of "my boost converter" isn't the ZY12PDN a type of boost converter? From the USB_C five volts to various voltages? Some useful data here: https://www.alexwhittemore.com/notes-on-usb-pd-triggers-and-zy12pdn-instructions/ Quote Link to comment Share on other sites More sharing options...
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