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| Lab Power Supply Turn ON and OFF Characteristics |
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| Geofrey:
Hi, I attached the results for my BCS6401. CH1 is on a 4wire configuration, CH2 is not. It did not cross test to see what factor is causing the overshoot as I would need some time to change the back wiring. Overall I would say fast response, but with some overshoot, unless I do not set the "fast speed" setting but "normal speed" instead. Interestingly, a set rise time comparable to the "normal speed" do result in overshoot. Also attached the results of my beloved :-DD Multicomp MP710087 (Owon P4305 rebadge) that never fails to impress me. The settling isn't at 40mA but at 101mA as I cannot calibrate the current offset to less than roughly 80mA. So I calibrated it to 100mA offset just to get somewhat legible reading on its screen. |
| _Wim_:
--- Quote from: mhsprang on October 08, 2024, 11:28:12 am ---While I have never written a control loop for a power supply, as an embedded programmer I keep wondering why you can't combine those loops or at least observe crossing the V and I limits at the same time and act accordingly? --- End quote --- You can. In industry we call this an "overide" control (also called sometimes select control). This is used when you have multiple PVs (process values) and only a single CV (control value). In our case we have measured voltage AND measured current as "PVs", and typically output voltage as "CV" (but this could be output current also as on the Yokogawa GS200 above). This article briefly describes override control (https://www.pid-tuner.com/wp-content/uploads/2019/07/Override_for_all.pdf), but once you know how it is called, there is tons of information available on the net. |
| AVGresponding:
HP 66311B on and off: Siglent 3303X (hacked from RS Pro 3303X-E) on and off: Will try HP 6633B and TTi EX354 later |
| Furna:
--- Quote from: tautech on October 07, 2024, 11:56:15 pm ---@Furna What is the display indication when Ch 2&3 are used in Series and Parallel modes ? --- End quote --- See images |
| tautech:
--- Quote from: Furna on October 08, 2024, 08:13:53 pm --- --- Quote from: tautech on October 07, 2024, 11:56:15 pm ---@Furna What is the display indication when Ch 2&3 are used in Series and Parallel modes ? --- End quote --- See images --- End quote --- Thanks. Nice, I didn't notice the bicolor LED lit Series/Parallel button in the short play I had with one at HQ. :-+ |
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