L
[email protected]
- Jan 1, 1970
- 0
1. Fast charging capacitors-Possible? Is the charging speed of a
capacitor determined by the input voltage and current?
2. I don't understand the differences between these myriad of capacitor
chemistries. But I'm looking at aerogel caps. Does output voltage stay
constant while current varies?
3. Also, do capacitors accept charge from an a/c source or will it need
a diode?
4. LEDs require a resistor, but how do you calculate the required
resistance if you connect the LEDs in series?
4.5. Then the voltage has dropped across each LED, yes?
5. What determines the capacity of a resistors resistance, i.e., what
is the max voltage/amperage input of a resistor with impedance x. Or do
I have it all wrong and is impedance rated at the specified input
power?
6. Is the power sent through a resistor merely attenuated or burnt off
as heat?
7. Will a resistor pass proportionally more power through if less than
the power the resistor is rated at is experienced?
8. Can caps handle overvoltage/overcharge (unlike a battery)?
9. Are cap chemistries what determine a caps discharge rate? Are carbon
aerogel caps "fast?" What do they use for railguns?
And because I'm too lazy to look it up, is there a simple way to figure
how many watts/hour a cap of capacitance xF will put out before
draining?
capacitor determined by the input voltage and current?
2. I don't understand the differences between these myriad of capacitor
chemistries. But I'm looking at aerogel caps. Does output voltage stay
constant while current varies?
3. Also, do capacitors accept charge from an a/c source or will it need
a diode?
4. LEDs require a resistor, but how do you calculate the required
resistance if you connect the LEDs in series?
4.5. Then the voltage has dropped across each LED, yes?
5. What determines the capacity of a resistors resistance, i.e., what
is the max voltage/amperage input of a resistor with impedance x. Or do
I have it all wrong and is impedance rated at the specified input
power?
6. Is the power sent through a resistor merely attenuated or burnt off
as heat?
7. Will a resistor pass proportionally more power through if less than
the power the resistor is rated at is experienced?
8. Can caps handle overvoltage/overcharge (unlike a battery)?
9. Are cap chemistries what determine a caps discharge rate? Are carbon
aerogel caps "fast?" What do they use for railguns?
And because I'm too lazy to look it up, is there a simple way to figure
how many watts/hour a cap of capacitance xF will put out before
draining?