Recent content by StJaux

Some notes on the BMS for the CC1 battery pack. I have made some minor modifications to the "Zephyr" design of Gary and Richard: 1. I separated the LVC from the BMS and decided to use a modified version of the cascade configuration Richard proposed some time ago. See my post...

I need to document a project I started some time ago. Please see http://endless-sphere.com/forums/viewtopic.php?f=10&t=31284 I will discuss the batteries and BMS and any comment will be welcomed. The motor is an EnerTrac MHM602 and the controller is a Kelly KBL12401B. The primary battery pack...

Most interesting! I think it might be worth while investigating, I will get one of these units and do a detail test. Thanks for the info! --StJ

I have a substantial investment in batteries and I would rather use "chargers" from a company I have known for many years and whose products I have been using successfully many times in various projects all over the planet. This BMC chargers is dirt cheap and my common sense tells me to be...

I managed to get information on setting the CC value of the HRP's from Meanwell. There are two 0806 1% SMD resistors on the daughter board that need replacing. The issue is the design wattage of the PSU - if you use it with the V out set higher than the design value, you got to bring the CC...

Thanks B775, I will keep this in mind for the next version, meanwhile I will run a long cable tie around the bottom cluster. StJ

Frame : Cannondale F7 Motor : X5304 Controller : Lyen 60A Battery : Headway H-38120S Top Speed : 59kmh-1 . Nice low C of G . Battery pack invisible from front view

Only got the units yesterday. I am in the process of creating a 2E2 900watt dummy load, I want to see what the HRP-600's can do. 32 x 3.6V = 115.2V / 3 = 38.4V, 38.4V / 17.5A (HRP-600-32 is adjusted to 38.4V and rated for 17.5A) = 2.19ohm, ~ 2E2 GM, do you have any idea how much current you...

GM, I almost forgot to ask you - any overheating problems on your side? Thanks StJ

GM, I have dismantled one of my HRP-600-36 units, there is no cut-off - it is a pure CC-CV power supply unit. StJ

KF, I have just invested in 3 of the HRP-600-36's to be connected in series to produce 115.2V for my 32-cell 16Ah LiPo pack. I have a question please: 1. According to Meanwell the CC value is programmed to between 105% and 135% of the rated current value. On my question if the PSU can handle...

Richard/Gary, Great work! Been following the post with interest, any chance of us viewing the circuit diagram? Thanks, John

Here is the Fechter Cascade design populated and simulated with real=world components. I like this design - it is cheap, consumes almost no power and is LVC Active LOW, independent of the height of the battery stack, provided the overlap daisy-chain is maintained. I will construct a prototype...

I see you have been around the block a couple of times. I have taken a slightly different approach - I will post the design in the next day or 2. StJ

I have a question please : I assume you will be using a TC54VX21 to detect the 2.1V crossing - why the 5v1 crowbar at the input of the voltage detector? StJ