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Post by milsap195 on Feb 25, 2014 22:47:50 GMT -5
Is this what is meant by power reserve? Can you tell the difference between a amp with 45000 and one with 120000?
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Post by Gary Cook on Feb 25, 2014 22:54:01 GMT -5
Speed, response, acceleration, dynamism, slam, punch, etc
Cheers
Gary
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Post by Chuck Elliot on Feb 25, 2014 23:32:13 GMT -5
Is this what is meant by power reserve? Can you tell the difference between a amp with 45000 and one with 120000? Outside of the primary function of filtering ripple from the rectifier output, which is closely related, increasing the total capacitance can provide current to the main rail(s) outside the steady-state levels that the power supply can provide. The main use is during transient signal times preventing a short signal from draining all available current. It will not help much during steady-state high power times as the caps will have no recharge time. Power Supply design is a science all its own with many different factors. Adding more caps in a DIY approach may invalidate other PS design considerations too! I am no pro in this area, but I know the above to be true. I worked at Data General in the late 70's the Eclipse C330 power supply had almost 2F of capacitance on the 5V line so it could supply 60A @ 5V. You could arc weld your pliers into permanent position if you didn't drain the charge with a discharge cap before trouble-shooting. Caps that were install in reverse polarity at assembly would explode violently if not caught before power up! Large filter banks can hold a lot of energy.  |
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Post by Boomzilla on Feb 26, 2014 6:42:20 GMT -5
If we were talking hydraulics instead of electricity, then a capacitor (in DC service) would be the equivalent of a water storage tank. Your amplifier runs on water, but it's supply is limited by the size of the supply pipe (capacity of the transformer) and the amount of water stored in the onboard tanks (capacitors). Having more storage means that your supply won't need to rely solely on the transformer.
Boom
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Post by Chuck Elliot on Feb 26, 2014 6:50:46 GMT -5
If we were talking hydraulics instead of electricity, then a capacitor (in DC service) would be the equivalent of a water storage tank. Your amplifier runs on water, but it's supply is limited by the size of the supply pipe (capacity of the transformer) and the amount of water stored in the onboard tanks (capacitors). Having more storage means that your supply won't need to rely solely on the transformer. Boom Good simple analogy. Water can be used to also understand other electronic items too: Height of tank = voltage Diameter of pipes = resistance Amount of water moving past a point = current |
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Post by Boomzilla on Feb 26, 2014 6:56:47 GMT -5
Yep - I came up with the same when I worked in a chemical plant. I'd state it slightly differently:
Hydraulic pressure = voltage
Hydraulic flow = current
Restriction orifice = resistor
Storage tank = capacitor in DC service
Check valve = diode
Spring-loaded pressure relief valve = metal oxide varistor (MOV)
Pressure regulator = Zener diode
Pneumatic control valve = transistor / vacuum-tube
etc.
Of course, there are some areas where the analogy breaks down. I've yet to find a hydraulic equivalent for a capacitor in AC service...
Boom
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Deleted Member
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Post by Deleted on Feb 26, 2014 7:30:33 GMT -5
Large amount of water/alcohol consumed = buzz
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Post by Chuck Elliot on Feb 26, 2014 8:16:29 GMT -5
Large amount of water/alcohol consumed = buzz I can only wish, although mine would be a JD #7 and Ginger Ale! |
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Post by richardrc on Mar 11, 2014 17:24:13 GMT -5
Hydraulics and water don't mix 0:) Yep - I came up with the same when I worked in a chemical plant. I'd state it slightly differently: Hydraulic pressure = voltage Hydraulic flow = current Restriction orifice = resistor Storage tank = capacitor in DC service Check valve = diode Spring-loaded pressure relief valve = metal oxide varistor (MOV) Pressure regulator = Zener diode Pneumatic control valve = transistor / vacuum-tube etc. Of course, there are some areas where the analogy breaks down. I've yet to find a hydraulic equivalent for a capacitor in AC service... Boom |
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Post by Gary Cook on Mar 11, 2014 17:42:34 GMT -5
I've yet to find a hydraulic equivalent for a capacitor in AC service... Boom Accumulator? Cheers Gary |
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Post by frenchyfranky on Mar 11, 2014 17:45:34 GMT -5
Large amount of water/alcohol consumed = buzz So, large amount of capacitance/voltage consumed = pleasure |
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Post by frenchyfranky on Mar 11, 2014 17:54:22 GMT -5
Large amount of water/alcohol consumed = buzz
+
large amount of capacitance/voltage consumed = pleasure
=
Dancing
+
Women
+
9 months
=
Child
+
14 years
=
teenage
+
Large amount of water/alcohol consumed = buzz...
=
divorce, etc. etc.
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