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DIY audio enthusiast in George
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<blockquote data-quote="JFG" data-source="post: 49191" data-attributes="member: 1150"><p>The batteries are brand new, and umm, just wondering about the circuit you have, if you connect the charger and power the speakers on full power, the system will not last through a night of party will it? I would rather prefer drawing power straight out of the charger, so it will last all night ;D</p><p></p><p>The SMPS's voltage can be tweaked easily, most of them have a pot to tune it, there are over voltage protection though, at like 14.2V. and if they don't have a pot (in my case) you find the feed back resistors going from the +5 and +12 line to the PWM IC, and put a pot in series with resistors, tricking the PWM chip to think the output is too low.</p></blockquote><p></p>
[QUOTE="JFG, post: 49191, member: 1150"] The batteries are brand new, and umm, just wondering about the circuit you have, if you connect the charger and power the speakers on full power, the system will not last through a night of party will it? I would rather prefer drawing power straight out of the charger, so it will last all night ;D The SMPS's voltage can be tweaked easily, most of them have a pot to tune it, there are over voltage protection though, at like 14.2V. and if they don't have a pot (in my case) you find the feed back resistors going from the +5 and +12 line to the PWM IC, and put a pot in series with resistors, tricking the PWM chip to think the output is too low. [/QUOTE]
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DIY audio enthusiast in George
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