9 Threads found on edaboard.com: Car Transient
The capacitors alone sorted the issue, but I will add the 100ohm resistors in parallel with the caps, as you have suggested.What wattage resistors should I use?
Also why are the caps solving this issue?
First use the 100R ... then add the capacitors.
The capactiors alone are no stable solution. (It may be now, but connect longer
Analog Circuit Design :: 04-13-2016 10:55 :: KlausST :: Replies: 16 :: Views: 487
It seems you have an inverter not a battery charger, so low ESR car battery or with alternator on is essential for reliable operation. If there is a bad cell, then regulation may be poor.
I suspect it is detecting an overvoltage transient, perhaps due to a noise suppression cap failing open.
I would consider adding a
Service Manuals, Requests, Repair Tips :: 06-15-2015 23:10 :: SunnySkyguy :: Replies: 2 :: Views: 2022
A car battery is at least 12V, meaning you have a decent voltage to drive a fet on why do pwm controllers like TLE8386 only have 5V fet drive.?....fet switching losses are far worse with such low voltage gate drive.....I know car batteries go down to 6v when cold cranking, but thats just a short transient condition.
Surely the way to
Power Electronics :: 11-28-2013 23:15 :: treez :: Replies: 4 :: Views: 441
from what a blown 12 V regulator? car operation @ 14.4V? regulate it better Certainly not EMI?
Polyfuse it for over current or use an SCR crowbar OVP protection with a fuse.
Professional Hardware and Electronics Design :: 04-25-2012 05:46 :: SunnySkyguy :: Replies: 18 :: Views: 1458
From your schematic all connections seem proper. I hope the power supply to both circuits (Microcontroller and L293 driver) are properly decoupled. If the motor produces any transient it will act on L293 first, as the motor is driven by the L293 not direct from supply circuit. Even then just for safety connect a 33Ω resistor in series with 1nF
Hobby Circuits and Small Projects Problems :: 01-30-2012 16:21 :: Raza :: Replies: 22 :: Views: 2197
try using transient suppressors like capacitor, varistor etc.....
if u want it to work only when the car is on then try switching a MOSFET or relay switch using the main supply...
Elementary Electronic Questions :: 10-15-2006 06:39 :: A.Anand Srinivasan :: Replies: 11 :: Views: 1451
I am using microcontroller to collect data from car. I have input channels for digital and analog sensors and I would need to protect those channels in some way.
Digital channels should accept both, DHE and inductive sensor outputs, so the input circuit should be capable to trigger approx 100Vpp sine-wave with +2V offset and with no modi
Hobby Circuits and Small Projects Problems :: 10-20-2005 09:44 :: juhhi :: Replies: 0 :: Views: 1109
Hey, my analogue isn't really up to spec, but I've worked on cars. The voltage does indeed fluctuate, but not by that much. I'd use a bloody great inductor in series, and a large cap to ground afterwards. Then into a regulator, I imagine most regusltors are quite resiliant when it comes to peak voltage (30v+) so I'm sure you'll be fine. Althoug
Professional Hardware and Electronics Design :: 05-20-2005 02:48 :: Buriedcode :: Replies: 3 :: Views: 1914
I need an supply for 12 and 24 v , begin whit Switch regular of on semi
mc34166, i have a cuestion
how protect my circuit of ignition moment, in this transient the supply of car have peek 0v ~ vcc+40% , in this moment i lose my data in ram.
thanks for u comments!
Professional Hardware and Electronics Design :: 04-13-2003 20:21 :: one :: Replies: 3 :: Views: 1102