Supply Voltage Calculator

✖Voltage at any time t FC, is the charging voltage in the circuit at any given time.ⓘ Voltage at any time t FC [V_fc]			+10% -10%
✖Resistance of the charging circuit FC, is the resistance of the charging circuit.ⓘ Resistance of the Charging Circuit FC [R_fc]			+10% -10%
✖Capacitance FC, is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential.ⓘ Capacitance FC [C_fc]			+10% -10%
✖Frequency of charging FC, is the frequency at which the circuit capacitor is charged.ⓘ Frequency of Charging FC [f_fc]			+10% -10%

✖Voltage of power supply FC, is the voltage required to charge a given device within given time.ⓘ Supply Voltage [V_s]

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Supply Voltage Solution

STEP 0: Pre-Calculation Summary

Formula Used

Voltage of Power Supply FC = Voltage at any time t FC/(1-exp(-1/(Resistance of the Charging Circuit FC*Capacitance FC*Frequency of Charging FC)))
V_s = V_fc/(1-exp(-1/(R_fc*C_fc*f_fc)))
This formula uses 1 Functions, 5 Variables

Functions Used

exp - n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable., exp(Number)

Variables Used

Voltage of Power Supply FC - (Measured in Volt) - Voltage of power supply FC, is the voltage required to charge a given device within given time.
Voltage at any time t FC - (Measured in Volt) - Voltage at any time t FC, is the charging voltage in the circuit at any given time.
Resistance of the Charging Circuit FC - (Measured in Ohm) - Resistance of the charging circuit FC, is the resistance of the charging circuit.
Capacitance FC - (Measured in Farad) - Capacitance FC, is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential.
Frequency of Charging FC - (Measured in Hertz) - Frequency of charging FC, is the frequency at which the circuit capacitor is charged.

STEP 1: Convert Input(s) to Base Unit

Voltage at any time t FC: 2 Volt --> 2 Volt No Conversion Required
Resistance of the Charging Circuit FC: 0.1805 Ohm --> 0.1805 Ohm No Conversion Required
Capacitance FC: 6.22 Farad --> 6.22 Farad No Conversion Required
Frequency of Charging FC: 4 Cycle per Second --> 4 Hertz (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_s = V_fc/(1-exp(-1/(R_fc*C_fc*f_fc))) --> 2/(1-exp(-1/(0.1805*6.22*4)))

Evaluating ... ...

V_s = 10.0187619478537

STEP 3: Convert Result to Output's Unit

10.0187619478537 Volt --> No Conversion Required

FINAL ANSWER

10.0187619478537 ≈ 10.01876 Volt <-- Voltage of Power Supply FC

(Calculation completed in 00.020 seconds)

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Home » Engineering » Production Engineering » Unconventional machining processes » Electro Discharge Machining (EDM) » System Analysis in EDM » Relaxation Circuit used for Generating Pulses in EDM » Frequency of Charging » Supply Voltage

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Created by Rajat Vishwakarma

University Institute of Technology RGPV (UIT - RGPV), Bhopal

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Verified by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

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< Frequency of Charging Calculators

Charging Voltage from Resistance Charging Circuit

LaTeX Go Voltage at any time t FC = Voltage of Power Supply FC*(1-exp(-1/(Resistance of the Charging Circuit FC*Capacitance FC*Frequency of Charging FC)))

Resistance of Charging Circuit EDM

LaTeX Go Resistance of the Charging Circuit FC = -1/(Frequency of Charging FC*Capacitance FC*ln(1-Voltage at any time t FC/Voltage of Power Supply FC))

Capacitance of Charging Circuit

LaTeX Go Capacitance FC = -1/(Resistance of the Charging Circuit FC*Frequency of Charging FC*ln(1-Voltage at any time t FC/Voltage of Power Supply FC))

Frequency of Charging

LaTeX Go Frequency of Charging FC = -1/(Resistance of the Charging Circuit FC*Capacitance FC*ln(1-Voltage at any time t FC/Voltage of Power Supply FC))

Supply Voltage Formula

LaTeX Go

Voltage of Power Supply FC = Voltage at any time t FC/(1-exp(-1/(Resistance of the Charging Circuit FC*Capacitance FC*Frequency of Charging FC)))
V_s = V_fc/(1-exp(-1/(R_fc*C_fc*f_fc)))

How the spark is produced in Electric Discharge Machining ?

A typical circuit used for supplying the power to an EDM machine is named as the relaxation circuit. The circuit consists of a DC power source, which charges the capacitor ‘C’ across a resistance ‘Rc’. Initially when the capacitor is in the uncharged condition, when the power supply is on with a voltage of Vo, a heavy current, ic, will flow in the circuit as shown to charge the capacitor.The relaxation circuit as explained above was used in the early EDM machines. They are limited to the low material removal rates for fine finish, which limits its application. This can be explained from the fact that the time spent on charging the capacitor is quite large during which time, no machining can actually take place. Thus the material removal rates are low.

How to Calculate Supply Voltage?

Supply Voltage calculator uses Voltage of Power Supply FC = Voltage at any time t FC/(1-exp(-1/(Resistance of the Charging Circuit FC*Capacitance FC*Frequency of Charging FC))) to calculate the Voltage of Power Supply FC, The Supply voltage formula is defined as the voltage of power supply used to charge the relaxation circuit used to provide spark in unconventional EDM. Voltage of Power Supply FC is denoted by V_s symbol.

How to calculate Supply Voltage using this online calculator? To use this online calculator for Supply Voltage, enter Voltage at any time t FC (V_fc), Resistance of the Charging Circuit FC (R_fc), Capacitance FC (C_fc) & Frequency of Charging FC (f_fc) and hit the calculate button. Here is how the Supply Voltage calculation can be explained with given input values -> 9.993985 = 2/(1-exp(-1/(0.1805*6.22*4))).

FAQ

What is Supply Voltage?

The Supply voltage formula is defined as the voltage of power supply used to charge the relaxation circuit used to provide spark in unconventional EDM and is represented as V_s = V_fc/(1-exp(-1/(R_fc*C_fc*f_fc))) or Voltage of Power Supply FC = Voltage at any time t FC/(1-exp(-1/(Resistance of the Charging Circuit FC*Capacitance FC*Frequency of Charging FC))). Voltage at any time t FC, is the charging voltage in the circuit at any given time, Resistance of the charging circuit FC, is the resistance of the charging circuit, Capacitance FC, is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential & Frequency of charging FC, is the frequency at which the circuit capacitor is charged.

How to calculate Supply Voltage?

The Supply voltage formula is defined as the voltage of power supply used to charge the relaxation circuit used to provide spark in unconventional EDM is calculated using Voltage of Power Supply FC = Voltage at any time t FC/(1-exp(-1/(Resistance of the Charging Circuit FC*Capacitance FC*Frequency of Charging FC))). To calculate Supply Voltage, you need Voltage at any time t FC (V_fc), Resistance of the Charging Circuit FC (R_fc), Capacitance FC (C_fc) & Frequency of Charging FC (f_fc). With our tool, you need to enter the respective value for Voltage at any time t FC, Resistance of the Charging Circuit FC, Capacitance FC & Frequency of Charging FC and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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