Timeline for arduino power problem when using boost converter
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 7, 2020 at 21:53 | vote | accept | Healer77Om | ||
| Mar 7, 2020 at 21:53 | comment | added | Healer77Om | thanks a lot for teaching me how to handle this condition . | |
| Mar 7, 2020 at 19:11 | comment | added | Jim Fischer | (cont.) Adding a large-valued electrolytic capacitor at the DSL6009's output must be done with care. At power up, a large-valued capacitor connected to the DSL6009's output appears as a momentary short circuit load; therefore, at power up the DSL6009 must supply a VERY LARGE--albeit momentary--surge of output current to "charge up" the large capacitive load at its output. The components on the DSL6009 board that source power to the board's output must all be designed to safely tolerate this momentary current surge when the DSL6009 powers up. | |
| Mar 7, 2020 at 18:33 | comment | added | Jim Fischer | If the XL6009 experiences voltage droop at its output at motor startup, the LM7809 momentarily loses input power resulting in a voltage droop at the LM7809's output. So doing nothing more than adding an LM7809 will not solve the problem. Others have suggested adding one or more large-valued electrolytic capacitors as energy storage reservoirs. At motor startup, the motor draws energy from both the XL6009 and the capacitors, which hopefully mitigates the overload condition on the XL6009, and thereby prevents excessive voltage droop on the +9.5 VDC power rail at motor startup. | |
| Mar 7, 2020 at 11:17 | comment | added | Healer77Om | if i add a LM 7809 linear voltage regulator in series with the booster before powering my uC and power the motors from the booster itself , can it solve the problem ? Stall current of my motors is 0.75A . | |
| Mar 7, 2020 at 7:51 | history | answered | Jim Fischer | CC BY-SA 4.0 |