LED flicker
Just installed a LED strip light in bathroom and works fine off of 12v. Cranked up generator and light flickers. Only this new one, have about 10 other bulbs that work fine. This new strip is 2 spe...
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I read the original posts, all of them and somehow missed the fact that Madam Borgia herself designed the converter the OP is using. in that case, the capacitor is out of the question and i enthusiastically recommend the present converter be neutralized and a genuine power supply be substituted. OP I am sorry and apologize for not seeing this. But keep the capacitor.
I was and am serious about ripple machines damaging electronics. I had a customer in 1995 who went through four Dometic refrigerator boards. I fitted the rig with a 55 amp switched converter and large cap and five years later he remained a happy camper.
Five amp battery charge rate? That's like flying today, looking out the window and seeing a pair of fabric covered wings with struts. Or an ignition retard lever on the steering column to pull down before you jump out and grab a-hold of the crank.
Neuter the converter, buy a basic battery charging power supply, connect the cap and be done with it. The cap is not only for converter ripple it is to suppress the effects of reactive load switching.
Connect an oscilloscope to the load side of ANY converter. Set scale to 5 MHz. Crank the main engine or generator and when you release the key watch what happens. If -that- doesn't make your britches fall down around your ankles, watch the screen grid for negative oriented transients. No, the starter motor solenoid power contact opening does NOT interrupt the huge transient spike. A 10,000 uf cap does an outstanding job on the positive side, and to get fancy, reverse bias a Motorola MR2535 avalanche rectifier across the starter positive to ground. That CLAMPS transients dead in their tracks. I have never suffered from blown board this, and refrigerator processing unit failures that. With one paragraph I just revealed a trade "secret" that made me an awful lot of money. Electrolytic capacitors and avalanche rectifiers just about eliminated electronic glitches, and premature electronics failures throughout the coach AND chassis systems. For do it yourselfer's a power device that "zeners" at 28-32 volts is fine. Reverse biasing the MR2535 clamps negative transients at a ridiculously low voltage. This is a sweet combination and as Marion Hovermale, the head engineer of the Delco CS alternator project said "Stuff like you just suggested could really make a dent in our profits"
Now you know...
I was and am serious about ripple machines damaging electronics. I had a customer in 1995 who went through four Dometic refrigerator boards. I fitted the rig with a 55 amp switched converter and large cap and five years later he remained a happy camper.
Five amp battery charge rate? That's like flying today, looking out the window and seeing a pair of fabric covered wings with struts. Or an ignition retard lever on the steering column to pull down before you jump out and grab a-hold of the crank.
Neuter the converter, buy a basic battery charging power supply, connect the cap and be done with it. The cap is not only for converter ripple it is to suppress the effects of reactive load switching.
Connect an oscilloscope to the load side of ANY converter. Set scale to 5 MHz. Crank the main engine or generator and when you release the key watch what happens. If -that- doesn't make your britches fall down around your ankles, watch the screen grid for negative oriented transients. No, the starter motor solenoid power contact opening does NOT interrupt the huge transient spike. A 10,000 uf cap does an outstanding job on the positive side, and to get fancy, reverse bias a Motorola MR2535 avalanche rectifier across the starter positive to ground. That CLAMPS transients dead in their tracks. I have never suffered from blown board this, and refrigerator processing unit failures that. With one paragraph I just revealed a trade "secret" that made me an awful lot of money. Electrolytic capacitors and avalanche rectifiers just about eliminated electronic glitches, and premature electronics failures throughout the coach AND chassis systems. For do it yourselfer's a power device that "zeners" at 28-32 volts is fine. Reverse biasing the MR2535 clamps negative transients at a ridiculously low voltage. This is a sweet combination and as Marion Hovermale, the head engineer of the Delco CS alternator project said "Stuff like you just suggested could really make a dent in our profits"
Now you know...
