AMPERE and MILLIAMPERE mA, means
milliampere. A, means
ampere. 1000mA is equal to
1ampere.Q: Sir kenzu, ano po ba yung ampere?A: Simple explanation, let's say meron kang tubo ng gripo. Yung diameter ng tubo, is the
AMPERE.,
then yung pressure ng water, yun yung
VOLTS,
yung water, yun ang
CURRENT,
and yung gripo mo, yun yung
output ng PSU..
edited using this picture to make it easier to understand..
Q: Sir kenzu, meron ako 1 analog effect that consumes 18 milliampere ONLY?
Pede ko bang gamitin yung 1000mA na power supply?
Hindi ba masisira o ma'fry yung effects ko? A: Hindi po.
AS LONG AS TAMA yung polarity at volts, kahit taasan mo pa ng ampere,
safe ang guitar effects mo.
Simple example: Yung
220vAC na kuryente sa bahay. Usually,
60 amperes yun..(60,000milliapere)
Tapos meron kang ISANG ilaw lang, na 220vAC pero mababa watts,
(10watts), Then power ON mo yung ilaw lang, nasisira ba? pumuputok ba?
Hindi po.. Stable lang sya. Kung ilang ampere lang ang kinakain ng gadget mo,
Yun lang din ang hihigupin nya.
As long as tama yung volts, tama yung polarity (kung meron), hindi sya puputok.
That's why, mas mataas na ampere, mas ok, kasi hindi kukulangin ng power
yung effects mo. Dapat lagi may ALLOWANCE yung ampere.
Q: Sir kenzu, ano naman po yung polarity, AC and DC?A: Ang volts, kapag may polarity, DC volts na yan. Kapag walang polarity, AC volts naman.
Meaning, kapag my polarity, DC volts (Direct Current) meron na syang POSITIVE at NEGATIVE.
My direction na flow ng kuryente. Meron ng papasok, at palabas. So kung anung direction ng
kuryente hinihingi ng effects mo, ganun ang ilagay mo.
Kapag nagkabaligtad ang polarity, tapos mataas ampere mo,
BARBEQUE na gadget mo.
Kapag
AC naman, kahit magkabaligtad, PWEDE sya, kc wala sya direction (polarity).
Q: kung ang pedal ko nagrerequire ng 500mA tapos sinupply ko ng 3000mA,
Hindi talaga masisira un? san mapupunta yung excess na current? A: Walang excess na current! naka-ready lang yun. Walang spill-out. Naka-standby lang.
Q: Alam ko kasi pag sumobra ang current, nako-convert yung excess na current at
nagiging heat energy... Then pag di na nakayanan ng wire (unless designed talaga para kayanin
nung components at nung mismong unit), SASABOG daw?A: First, dapat malaman mo na my tinatawag na
LOAD..
Yung
LOAD, ang humihigop ng kuryente kaya my tinatawag na
CURRENT DRAW.
CURRENT DRAW means, kung gaano kalakas kumain ng kuryente yung
LOAD or guitar effects.
Now, your PSU is your POWER SOURCE,
your guitar effects is your LOAD.
Then you have DC cable from PSU to EFFECTS.
IF 1500mA yung CURRENT DRAW ng LOAD,
but if your DC cable can ONLY carry below 1500mA, dun sya mag-iinit, puputok yung DC cable!
Kahit taasan mo AMPERE, kung ilan lang yung CURRENT DRAW ng LOAD, yun lang ang hihigupin ng LOAD.. .
HINDI magpipilit pumasok or magpu-PUSH papasok yung AMPERE sa LOAD!
NOTE: BE SURE to check first the polarty, volts and amperes of your gadgets before plugging PSU into it.
It's better to use higher ampere POWER SOURCE, but NOT higher volts.
If mas mababa ampere ng power source sa required ampere ng guitar effects,
IT WILL CAUSE HUM.. .
Thanks.
