Circuit Sim · 회로 시뮬레이터

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About this app

Circuit Sim is a tool that allows you to draw and simulate electronic circuits directly on your mobile phone.

You can place resistors, capacitors, inductors, and power supplies, as well as non-linear components such as diodes, BJTs, and MOSFETs, and calculate the operating point (DC) and transient response over time with a single button press.

■ Key Features

• Grid-based Circuit Editing — Place components, connect points for wiring, rotate 90°, and edit parameters

• DC Operating Point Analysis — Instantly display all node voltages and component currents (MNA + Newton–Raphson)

• Transient Response Analysis — Chart time-domain waveforms such as RC and RL

• Rich Components — Resistors (R), Capacitors (C), Inductors (L), Voltage/Current Sources, Diodes,

BJTs (NPN/PNP), MOSFETs (N/P), Dependent Power Sources (VCVS, VCCS, CCVS, CCCS)

• Save/Load Circuits — Save and load your circuits to your device

• Dark Mode — Light / Dark / System Themes

• Standard Circuit Symbols — Textbook-identical representations, orthogonal wiring

■ Recommended for

• Students studying electronics and electrical circuits

• Makers and engineers who want to quickly verify circuit operation

• Those teaching or learning circuit theory

Built on an accurate numerical analysis engine (Modified Nodal Analysis), [for manual] You can instantly verify the answer to the circuit problem you are solving. It operates offline without an internet connection.

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