Timeline for DC-DC step up from 3V to over 100V
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 24, 2020 at 3:41 | answer | added | user159315 | timeline score: 0 | |
| Jun 15, 2014 at 14:49 | comment | added | Kamil | Boosting 3V to 100V without transformer is hard, especially if you don't have oscilloscope (or you have one?). I think that blaming Microchip for poor aftersale support is inappropriate. Their support is great, they have nice educational documents, starter kits etc. You could ask about this on Microchip forum or here instead of asking MCP technical support. There is nothing wrong with such MCP technican response. | |
| Jun 15, 2014 at 13:09 | comment | added | user34920 | @user45538 - I would check my PWM signal. This circuit should be able to easily give you x10 the input voltage. Try using a much larger cap on the output like 330uF - 470uF cap on the output and connect a load (R) that will draw very little current for starting out. | |
| Jun 15, 2014 at 4:30 | comment | added | user45538 | 3V here is not the exact input I did. I just want to check if the boost circuit is able to boost up 3/4 times. I've tried 6V or even 9V for both simulation and real application. It seems that this boost circuit is not ale to boost more than 2 times. | |
| Jun 14, 2014 at 19:02 | comment | added | user34920 | I've built a similar circuit using parts I had around. It took 9V to 120V (low current draw). I don't know if you can get to 110V using this setup but you really need to change that diode to a Schottky. | |
| Jun 14, 2014 at 14:18 | answer | added | user16324 | timeline score: 3 | |
| Jun 14, 2014 at 13:25 | answer | added | Spehro 'speff' Pefhany | timeline score: 3 | |
| Jun 14, 2014 at 9:58 | answer | added | Kamil | timeline score: 0 | |
| Jun 14, 2014 at 9:42 | comment | added | Wouter van Ooijen | Assuming 50% efficiency 100mA out at 100V means ~ 6A input on average. Depending on the duty cycle that might mean ~ 10A peak. Is your circuit, especially the 3V source, up to that? | |
| Jun 14, 2014 at 8:33 | comment | added | Andy aka | The diagram shows it with 3volts on the input not 30volts - are you sure this is correct. Also what output current do you need and what is the 3V power source? 10mH inductors that are effective for this type of application are probably going to be no-smaller than a flyback transformer. | |
| Jun 14, 2014 at 7:09 | review | First posts | |||
| Jun 14, 2014 at 7:10 | |||||
| Jun 14, 2014 at 6:50 | history | asked | user45538 | CC BY-SA 3.0 |