Re: DC boost converter max power ?
I got 234mV on Vo for 47uH and 150KHz....
I got 234mV on Vo for 47uH and 150KHz....
-
-
Re: DC boost converter max power ?
What is the output diode you are using?My pc
CPU : AMD PHENOM II x4 @ 3.5Ghz
MB : ASUS M4A89TD PRO USB3
RAM : Kingston ValueRAM 16gb DDR3
PSU : Cooler Master 850W Silent Pro
GPU : ATI Radeon HD 6850Comment
-
Re: DC boost converter max power ?
Diode = FR302 on frequency 921Hz, Vo = 216V and RL=7K..Comment
-
-
Re: DC boost converter max power ?
1N5822 40v not good enough
FR107 1000v good up to 1000v will work for your application.My pc
CPU : AMD PHENOM II x4 @ 3.5Ghz
MB : ASUS M4A89TD PRO USB3
RAM : Kingston ValueRAM 16gb DDR3
PSU : Cooler Master 850W Silent Pro
GPU : ATI Radeon HD 6850Comment
-
Re: DC boost converter max power ?
so if the output voltage is larger than diode breakdown voltage, it will reverse backward through diode...I seeComment
-
Re: DC boost converter max power ?
may be it will answer one of my puzzle...Comment
-
Re: DC boost converter max power ?
Nearly the same result with FR107 ...216V at RL = 7KComment
-
Re: DC boost converter max power ?
I'm thinking obtaining 330uH or 470uH inductor in one piece, since I'm using multiple inductors in series now, a lot flux loss down the wire, reducing efficiency a lot..Comment
-
Re: DC boost converter max power ?
what are you supplying this with
if you use 330uf inductor use 15khz oscillator.Last edited by joshnz; 12-04-2016, 04:02 AM.My pc
CPU : AMD PHENOM II x4 @ 3.5Ghz
MB : ASUS M4A89TD PRO USB3
RAM : Kingston ValueRAM 16gb DDR3
PSU : Cooler Master 850W Silent Pro
GPU : ATI Radeon HD 6850Comment
-
Re: DC boost converter max power ?
I'm using 12V ATX power supply...the output is 11.4V
I put fuse for protection...Comment
-
My pc
CPU : AMD PHENOM II x4 @ 3.5Ghz
MB : ASUS M4A89TD PRO USB3
RAM : Kingston ValueRAM 16gb DDR3
PSU : Cooler Master 850W Silent Pro
GPU : ATI Radeon HD 6850Comment
-
Re: DC boost converter max power ?
do you mean I need to put 10 ohm 10W on 5V rail to get a good voltage and current on 12V rail ? I have 10 ohm 10W, I'll put it later on ..Comment
-
Re: DC boost converter max power ?
another calck says 330uf inductor use 150khz oscillator.My pc
CPU : AMD PHENOM II x4 @ 3.5Ghz
MB : ASUS M4A89TD PRO USB3
RAM : Kingston ValueRAM 16gb DDR3
PSU : Cooler Master 850W Silent Pro
GPU : ATI Radeon HD 6850Comment
-
Re: DC boost converter max power ?
There are only two explanations for that.
1) The mail in Australia is using actual snails for delivery - highly unlikely
OR
2) The location in your profile is... incorrect (i was tempted to say BS at first).
I don't want to think of a third possibility. Or actually, the "nicer" third possibility would be that you didn't even READ what i wrote in that post.
I'm quite sure you didn't even click on that first result - the seller seems to be based in Croydon, Victoria.
Are you trying to tell me a small envelope with 10 chips takes a whole friggin month to travel from Victoria to Western Australia? Or you really can't spare 5-6$?Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - ShenanigansComment
-
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
I was working on this CNC machine today found no keyboard functioning no control relay powering on
The screen powered on and was giving an operation error but the manual was not very clear about what the error exactly was but with a little bit of troubleshooting and finding out that the control relays not powering on and no keyboard functions we narrowed down to this one switching power supply which of course does not have any indicator LED light they are on the keyboard interface/relay controller board
Found shorted diodes on main controller relays there are 3 of them that... -
Hello, I have an asus Z97-A motherboard and it doesn't start which was working properly before, the problem isn't related by ram, ram slots or psu (I changed all and nothing work), the exact problem is when you switch it on , it starts and after 1 seconds (no boot or display picture) it's off and then on cycle continuously until you power it off from psu also it's responding to the power switch for turning it off if you keep pressing it 3 or 4 seconds (power button pin has 3.3v) , also when you start it with eatx 12v socket connected this is happening (power cycle also all voltages are resetting...
Comment