Electrohelper: EE Toolbox Pro

Electrohelper is an app perfect for Electrical/Electronics engineering students and electronics hobbyists/enthusiasts. It helps you lookup electronic component information quickly. You can also perform circuit calculations with the app, it covers detail information about electronics components and common electronics circuits.

The app provides you with the information you need to understand how electronics component works, the app provides the list of common electronics components for a project like the list of common rectifier diodes, common signal diodes, common BJTs, etc.

App features include:
Electronics components reference section
Circuit calculations section
Common Electronics Circuit section.

The app provide detail information for the following electronic components
Resistor.
Capacitor.
Inductor.
Transformer.
Choke.
Transistor.
Operational amplifier.
555 Timer.
Electrolytic capacitor.
Light-emitting diode.
Signal diode.
Rectifier diode.
Voltage regulators.

Here are the available calculations in the circuit calculator section:

Passive Butterworth filter calculations/design.
Sallen-Key filter calculations/design.
555 Timer astable multivibrator calculations.
555 Timer monostable pulse duration calculations.
Resistor color code calculator.
Series resistor calculator.
Parallel resistor calculator.
Voltage divider calculator.
LCR impedance calculator.
LCR resonance calculator.
Operational amplifier calculator.
Inverting amplifier calculator.
Non-inverting amplifier calculator.
Difference amplifier calculator.
LED resistor calculator.
Zener diode voltage regulator calculator.
Inductor winding calculator.
Capacitive reactance calculator.
Inductive reactance calculator.
Bipolar Junction Transistor parameters calculator.
Delta - Star.
Star - Delta.
Current divider calculator.
Parallel RLC calculator.
Series RLC calculator.
Resistance calculator.
Capacitance calculator.
Filter calculator.
etc

Common circuit section includes:
Active rectifier circuit.
Bandpass filter circuit.
Transistor astable multivibrator circuit.
MOSFET amplifier circuits.
Class A amplifier circuit.
Class B amplifier circuit.
Differential amplifier circuit.
Colpitt oscillator.
Hartley oscillator circuit.
Low pass filter circuit
High pass filter circuit.
etc.