Áireamhán Muirear Capacitor
Déan cairt de chuar an mhuirir nó an urscaoilte i gciorcad RC le tairiseach ama agus fuinneamh.
Torthaí a nuashonrú mar a chlóscríobh tú.
Maidir leis an áireamhán seo
Capacitor charge is the electric charge a capacitor holds in the field between its plates, Q = C × V in coulombs, and the energy stored is E = ½ × C × V² in joules, so doubling the voltage quadruples the stored energy. When you charge a capacitor through a series resistor, the voltage does not jump instantly — it rises along the curve V(t) = V × (1 − e^(−t/τ)); discharging, it falls along V(t) = V × e^(−t/τ). Both are governed by the time constant τ = R × C, the natural timescale of the RC circuit.
After one time constant the capacitor reaches about 63% of the supply voltage when charging (or falls to 37% when discharging); after 5τ it is within 1% of its final value and is treated as fully charged or discharged. For example, a 1,000 µF capacitor charged through a 1 kΩ resistor has τ = 1,000 × 10⁻⁶ × 1,000 = 1 second, so it is 63% charged after 1 s and essentially full after 5 s. At 5 V that same capacitor stores Q = 0.001 × 5 = 0.005 C and E = ½ × 0.001 × 25 = 0.0125 J.
Enter the supply voltage, capacitance and series resistance and the calculator returns the full charge, the stored energy, the time constant, the settling time (5τ), the voltage at a chosen instant, and the whole charge or discharge curve. These numbers are the everyday basis for RC timing circuits, power-supply smoothing, debounce delays, flash-photography energy storage and the turn-on delays in analogue electronics.
Ceisteanna Coitianta
Cad é an tairiseach ama de chiorcad RC?
Is é an tairiseach ama τ = R × C an t-am a mhuirearú go dtí thart ar 63% den voltas soláthair. Tar éis 5τ meastar an toilleoir a bheith luchtaithe go hiomlán (> 99%).
Cé mhéad fuinnimh a stórálann toilleoir?
Is é an fuinneamh E = ½ × C × V². Stórálann toilleoir 1000 µF ag 5 V ½ × 0.001 × 25 = 0.0125 joules.
Cad é an difríocht idir muirearú agus urscaoileadh?
Ardaítear an muirear i dtreo an tsoláthair mar V(1 − e^(−t/τ)); titeann an t-urscaoileadh ón voltas tosaigh mar V·e^(−t/τ) agus sroicheann an dá cheann ~99% den athrú tar éis 5 thairiseach ama.
Cé mhéad muirear a shealbhaíonn toilleoir?
Is é an muirear Q = C × V i coulombs. Tá toilleoir 1,000 µF ag 5 V 0.001 × 5 = 0.005 C. Toilleas níos mó nó voltas níos airde araon stóráil níos mó muirear, i gcomhréir dhíreach.
Cé chomh fada go dtí go bhfuil an toilleoir luchtaithe go hiomlán?
Go praiticiúil, tar éis cúig tairiseach ama (5τ = 5RC) tá sé laistigh de thart ar 1% den soláthar agus déileáiltear leis mar iomlán.Le friotóir 1 kΩ agus toilleoir 1,000 µF tá τ 1 s, mar sin tá sé go bunúsach a mhuirearú tar éis thart ar 5 soicind.
Cén céatadán a bhaintear amach tar éis gach tairiseach ama?
Sroicheann an muirear thart ar 63% tar éis 1τ, 86% tar éis 2τ, 95% tar éis 3τ, 98% tar éis 4τ agus 99% tar éis 5τ. Leanann an t-urscaoileadh an íomhá scátháin: 37%, 14%, 5%, 2% agus 1% ag fanacht ag na pointí céanna.
Cén fáth a gcuireann tú friotóir sraith ar chor ar bith?
Leagtar an luas luchtaithe leis an bhfriotóir. Gan é, níl an spike reatha ag lasc-ar teoranta ach ag friotaíocht stray agus is féidir é a bheith ollmhór; déanann an friotóir an uainiú intuartha, atá go díreach cad a bhraitheann uaireadóirí RC, scagairí agus ciorcaid debounce ar.
API — úsáid an áireamhán seo ó chód
Glaoigh ar an áireamhán seo mar chríochphointe JSON saor in aisce - níl aon eochair ag teastáil. Seol na luachanna réimse thíos mar pharaiméadair cheist nó JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Léigh an doiciméadú iomlán API →
Deireadhphointe
GET https://calculator.free/api/v1/capacitor-charge/curl
curl "https://calculator.free/api/v1/capacitor-charge/?mode=charge&voltage=5&capacitance=1000&resistance=1000"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/capacitor-charge/?" + new URLSearchParams({
"mode": "charge",
"voltage": "5",
"capacitance": "1000",
"resistance": "1000"
}));
const data = await r.json();
console.log(data.results);Is meastacháin iad na torthaí le haghaidh treoir ghinearálta amháin, ní comhairle airgeadais, leighis nó cánach.