online electronic calculator - Ohm's law and much more

Inductor square pulse calculator

Online calculator for formulas used in electronic circuit design and electrical engineering.

Basic electric calculations:

Ohm's Law, Ohm's Law with power, DC power, AC real power, LC resonant frequency, Capacitor charging/discharging, Capacitive reactance, Capacitive current + reactive power, Capacitor energy, Capacitor Δ energy, RC discharging, Inductor square pulse, Inductive reactance, Inductive current + reactive power, Inductor energy, 2 parallel resistors, 3 parallel resistors, System bandwidth

Wire and winding calculations:

Diameter ↔ cross section ↔ AWG, Wire resistance, Wire weight, Current density, Wire R thermal drift

Calculate Inductor square pulse: 2mH, 300V, 5us, 4A, A

A square wave voltage pulse on an inductance L for time duration t. You can calculate how does it change the inductor current. Current 1 (I1) is the initial current. Current 2 (I2) is the final current. Current 1 = 0 for current induced by a square wave pulse when the initial current is zero.    I2=I1+(t*U/L)
waveform of current and square wave voltage pulse on an inductor

Enter any 4 values, the 5th one will be calculated:

Inductance: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Voltage: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Time: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Current 1: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Current 2: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Output metric prefix:   Automatic    User-selected

Standard EIA Decade Values of inductors - decade 1 to 10 mH

1.0 mH
1.5 mH
2.2 mH
3.3 mH
4.7 mH
6.8 mH
1.0 mH, 1.2 mH
1.5 mH, 1.8 mH
2.2 mH, 2.7 mH
3.3 mH, 3.9 mH
4.7 mH, 5.6 mH
6.8 mH, 8.2 mH
1.0 mH, 1.1 mH, 1.2 mH, 1.3 mH
1.5 mH, 1.6 mH, 1.8 mH, 2.0 mH
2.2 mH, 2.4 mH, 2.7 mH, 3.0 mH
3.3 mH, 3.6 mH, 3.9 mH, 4.3 mH
4.7 mH, 5.1 mH, 5.6 mH, 6.2 mH
6.8 mH, 7.5 mH, 8.2 mH, 9.1 mH

Other inductance decades:

100 - 1000 pH, 1 - 10 nH, 10 - 100 nH, 100 - 1000 nH, 1 - 10 uH, 10 - 100 uH, 100 - 1000 uH, 1 - 10 mH, 10 - 100 mH, 100 - 1000 mH, 1 - 10 H, 10 - 100 H,

Some common voltages:

NiMH, NiCd
full 4.2V
(LFP) 3.2V
1-cell: 1.5V
2-cell: 3V
3-cell: 4.5V
4-cell: 6V
5-cell: 7.5V
6-cell: 9V
7-cell: 10.5V
8-cell: 12V
9-cell: 13.5V
10-cell: 15V
11-cell: 16.5V
12-cell: 18V
1-cell: 1.2V
2-cell: 2.4V
3-cell: 3.6V
4-cell: 4.8V
5-cell: 6V
6-cell: 7.2V
7-cell: 8.4V
8-cell: 9.6V
9-cell: 10.8V
10-cell: 12V
11-cell: 13.2V
12-cell: 14.4V
1-cell: 3.6V
2-cell: 7.2V
3-cell: 10.8V
4-cell: 14.4V
5-cell: 18V
6-cell: 21.6V
7-cell: 25.2V
8-cell: 28.8V
9-cell: 32.4V
10-cell: 36V
11-cell: 39.6V
12-cell: 43.2V
1-cell: 3.7V
2-cell: 7.4V
3-cell: 11.1V
4-cell: 14.8V
5-cell: 18.5V
6-cell: 22.2V
7-cell: 25.9V
8-cell: 29.6V
9-cell: 33.3V
10-cell: 37V
11-cell: 40.7V
12-cell: 44.4V
1-cell: 4.2V
2-cell: 8.4V
3-cell: 12.6V
4-cell: 16.8V
5-cell: 21V
6-cell: 25.2V
7-cell: 29.4V
8-cell: 33.6V
9-cell: 37.8V
10-cell: 42V
11-cell: 46.2V
12-cell: 50.4V
1-cell: 3.2V
2-cell: 6.4V
3-cell: 9.6V
4-cell: 12.8V
5-cell: 16V
6-cell: 19.2V
7-cell: 22.4V
8-cell: 25.6V
9-cell: 28.8V
10-cell: 32V
11-cell: 35.2V
12-cell: 38.4V
1-cell: 6V
2-cell: 12V
3-cell: 18V
4-cell: 24V
5-cell: 30V
6-cell: 36V
7-cell: 42V
8-cell: 48V
9-cell: 54V
10-cell: 60V
11-cell: 66V
12-cell: 72V

Inductor square pulse formula says:

•Applying a 300V (three hundred volts) square wave voltage pulse to a 2mH (two millihenrys) inductor for 5us (five microseconds) will induce a current change from 4A (four amperes) to 4.75A (four point seven five amperes).
•If the inductor current changes from 4A (four amperes) to 4.75A (four point seven five amperes) in 5us (five microseconds) by applying 300V (three hundred volts), its inductance is 2mH (two millihenrys).
•When a 2mH (two millihenrys) inductor changes its current from 4A (four amperes) to 4.75A (four point seven five amperes) in 5us (five microseconds), it means that the applied square wave pulse voltage was 300V (three hundred volts).
•A 2mH (two millihenrys) inductor will take 5us (five microseconds) to induce a current change from 4A (four amperes) to 4.75A (four point seven five amperes) at 300V (three hundred volts) voltage.

This is a simple online calculator for formulas used in electronic engineering and design.

This online calculator is for reference only. I do not guarantee it to work correctly. You use this at your own risk only.