| Electronics > Beginners |
| How to add soft-start feature to a PSU? |
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| Arjunan M R:
--- Quote from: TheHolyHorse on June 22, 2019, 02:54:24 pm ---Nice to hear I'm not the only one :) I'm actually working on a PSU as well, it's all layout all I have to do is order the PCB but I'm a bit hesitant. It feels like I've done something wrong, but there's only one way to know isn't it :). Anyway I'm not gonna ramble about my stuff, lets stay on topic. --- End quote --- it's "it's all laid out" not "it's all layout" ;D. I am designing the PCB right now. All the components are laid out.I have to now rout 300+ connections :phew:(most of em are GND and VCC and I already connected about 75) |
| Arjunan M R:
--- Quote from: Arjunan M R on June 22, 2019, 03:29:08 pm --- --- Quote from: TheHolyHorse on June 22, 2019, 03:02:58 pm ---As for the topic, can't you just set the voltage slowly. I assume you're gonna control everything with some micro so doing that in software will be ezpz. --- End quote --- Yeah, but the code is already complicated enough for me.With 3 devices on I²C and 1 on SPI :phew:. I am trying to do most of the things in the hardware side as possible. --- End quote --- And an 16X2 LCD :-\ |
| David Hess:
The common way is to delay the startup of the reference, maybe with an under-voltage lockout, or limit the rise time of the reference voltage applied to the error amplifier. |
| Arjunan M R:
--- Quote from: TheHolyHorse on June 22, 2019, 02:54:24 pm ---Nice to hear I'm not the only one :) I'm actually working on a PSU as well, it's all layout all I have to do is order the PCB but I'm a bit hesitant. It feels like I've done something wrong, but there's only one way to know isn't it :). Anyway I'm not gonna ramble about my stuff, lets stay on topic. --- End quote --- I am also having that feeling of I have done something wrong or stupid. |
| Arjunan M R:
--- Quote from: David Hess on June 22, 2019, 03:36:54 pm ---The common way is to delay the startup of the reference, maybe with an under-voltage lockout, or limit the rise time of the reference voltage applied to the error amplifier. --- End quote --- That error amp is for current not voltage: Or are you talking about this: |
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