| Products > Test Equipment |
| An investigation about ripple current of Kunkin KP184 |
| << < (11/18) > >> |
| tautech:
--- Quote from: dirtcooker on March 21, 2022, 05:24:02 pm --- Note that I live in the city, and there is a lot of RF noise from nearby radio stations, unfortunately, which you can see on my scope. --- End quote --- Turn your 20 MHz BW limiter on for these types of measurements. ;) |
| PaWill68:
Sorry, I haven't been on the forum for months. Insider information from KUNKIN: Production of a new hardware version has begun, where the main changes are in two places. 1) Stabilization of the fan supply voltage from LM317. 2) Improved voltage and current measurement accuracy, temperature drift is much smaller. 3) The new version of the MCU is based on ARM-CORTEX-M3 GD32F130C8T6, which greatly increased the performance and protection response. The new software is not compatible. I don't have more detailed information. |
| burkm:
I resolved some of the problems mentioned by rerouting the fan cables and resoldering some suspicious solder-connections. My mainboard version was V5. Was actually going to order a 2nd one after this, but I am now waiting for the new hard- and firmware version announced in the post before... |
| burkm:
Anyone seen anything of the KP184 version mentionend before ? I checked ebay i.e., but I don't find any mention of a new hardware version or else. |
| seronday:
I recently obtained a KP184 which has a main board ver 06, fitted with an LM317 to regulate the fan supply and a GD32F130C8T6 MCU Regards. |
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