Timeline for Why does the voltage measured across a DC motor drop when it is turned on?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Jul 28 at 13:41 | history | edited | Circuit fantasist |
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| Jul 28 at 13:40 | answer | added | Circuit fantasist | timeline score: -1 | |
| Jul 28 at 13:02 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 23 at 7:26 | history | edited | JRE | CC BY-SA 4.0 |
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| Jun 23 at 6:48 | answer | added | Simon Fitch | timeline score: 2 | |
| Jun 23 at 2:05 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 9, 2020 at 21:19 | comment | added | Jasen Слава Україні | what is the DC resistance eof the motor? (you can measure this) What is the dc resistance of the driver?(you can measure this or look it up), what is the dc resistance of the supply?(look it up, or measure with a dummy load), the resistance of the wires anc connectors mtters too. | |
| Dec 9, 2019 at 1:52 | comment | added | Bruce Abbott | " I do not believe that the driver is the blame since i know my drivers are using mosfets and the voltage drop should be very minimal." - Assumptions are dangerous. Did you measure it? To find where the loss is you should measure the voltages at all points in the circuit - at the power supply, at the power input to the the driver, at the output of the driver, and at the motor itself. | |
| Dec 8, 2019 at 23:07 | comment | added | Transistor | @Jake: Do you mean the voltage of the supply is higher before the motor is connected? Please edit to clarify. | |
| Dec 8, 2019 at 22:54 | comment | added | jsotola | it is unclear what you are saying ... how can the voltage across the motor be higher when it is not connected to a power supply than when it is connected to a power supply? ... the techique used for determining that result may be faulty | |
| Dec 8, 2019 at 22:50 | answer | added | D.A.S. | timeline score: 2 | |
| Dec 8, 2019 at 22:41 | history | asked | Jake quin | CC BY-SA 4.0 |