Differential Amplifier & CMRR Calculator Differential Amplifier & CMRR Calculator Calculate the differential gain and the common mode rejection ratio (CMRR) of an op-amp differential amplifier. * Enter resistor values in ohms. Step 1: Enter Resistor Values Resistor \(R_1\) (Ω): e.g., 1000 Ω (between \(V_1\) and inverting input) Resistor \(R_2\) (Ω): e.g., 4700 Ω (feedback […]
Read MoreOp-Amp Log Amplifier Calculator Op-Amp Log Amplifier Calculator Calculate the output voltage using: $$ V_{\text{out}} = -V_T \ln\left(\frac{V_{\text{in}}}{R\, I_s}\right) $$ * Ensure all inputs are in SI units: \(V_{\text{in}}\) in Volts, \(R\) in Ω, \(I_s\) in Amperes, and \(V_T\) in Volts. Step 1: Enter Parameters Input Voltage, \(V_{\text{in}}\) (V): e.g., 1 V Resistor, \(R\) (Ω): […]
Read MoreOp-Amp Voltage-to-Current Converter Calculator Op-Amp Voltage-to-Current Converter Calculator Convert a voltage signal to a proportional current using the formula: $$ I_{out} = \frac{V_{in}}{R} $$ * Ensure that the resistor \(R\) is in ohms (Ω) and the voltage \(V_{in}\) is in volts (V). Step 1: Enter Parameters Input Voltage, \(V_{in}\) (V): e.g., 5 V Resistor, \(R\) […]
Read MoreNon-Inverting Op-Amp Gain Calculator Non-Inverting Op-Amp Gain Calculator Calculate the ideal and non-ideal gain for a non-inverting op-amp. * Ideal Gain: \( A_{ideal} = 1 + \frac{R_f}{R_1} \) Non-Ideal Gain: \( A_{nonideal} = \frac{1 + \frac{R_f}{R_1}}{1 + \frac{1 + \frac{R_f}{R_1}}{A_{OL}}} \) Step 1: Enter Parameters Feedback Resistor, \(R_f\) (Ω): e.g., 4700 Ω Input Resistor, […]
Read MoreCommon Base Amplifier Calculator (Small Signal Analysis) Common Base Amplifier Calculator Calculate key small-signal parameters for a common base amplifier. Assumption: Thermal voltage \(V_T \approx 0.025\,V\) at room temperature. Step 1: Enter Parameters Emitter Current, \(I_E\) (mA): e.g., 10 mA (will be converted to A) Collector Resistor, \(R_C\) (Ω): e.g., 4700 Ω Transistor Current Gain, […]
Read MoreCommon Emitter Amplifier Calculator Common Emitter Amplifier Calculator This calculator computes key small-signal parameters for a common emitter amplifier. Assumptions: Emitter bypass capacitor is used. Step 1: Enter Parameters Collector Current, \(I_C\) (mA): e.g., 10 mA (will be converted to A) Transistor Current Gain, \(\beta\): e.g., 100 Collector Resistor, \(R_C\) (Ω): e.g., 4700 Ω Calculate […]
Read MoreBimetallic Strip Radius of Curvature Calculator Calculate the radius of curvature \(R\) due to thermal expansion using: $$ R = \frac{t}{\Delta\alpha\, \Delta T} $$ * Ensure all units are consistent: thickness \(t\) in meters, Δα in 1/K, and ΔT in Kelvin. Step 1: Enter Parameters Total Thickness, \(t\) (m): e.g., 0.005 m (5 mm) Difference […]
Read MorePlasma Electron Relaxation Time Calculator Plasma Electron Relaxation Time Calculator Calculate the electron relaxation time using: $$ \tau_e = \frac{3 \sqrt{m_e}\,(k_B\, T_e)^{3/2}}{4 \sqrt{2}\,\pi\, n_e\, e^4 \ln\Lambda} $$ * Ensure all inputs are in SI units: \(T_e\) in K, \(n_e\) in m\(^{-3}\), and \(\ln\Lambda\) as a dimensionless number. Step 1: Enter Plasma Parameters Electron Temperature, \(T_e\) […]
Read MoreMill Spindle Speed and Feed Rate Calculator Calculate the spindle speed and feed rate for a milling operation. * Cutting speed (m/min), tool diameter (mm), feed per tooth (mm/tooth), and number of teeth are required. Step 1: Enter Parameters Cutting Speed, \(V\) (m/min): e.g., 150 m/min Tool Diameter, \(D\) (mm): e.g., 10 mm Feed per […]
Read MoreBattery Charger Calculator Battery Charger Calculator Estimate the charging time using: $$ T = \frac{C \times \left(\frac{SOC_{\text{final}} – SOC_{\text{initial}}}{100}\right)}{I \times \eta} $$ * Ensure battery capacity is in Ah, current in A, and efficiency is entered as a fraction (e.g., 1.0 for 100%). Step 1: Enter Battery Parameters Battery Capacity, \(C\) (Ah): e.g., 100 Ah […]
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