Скачать или смотреть How to Boost 3V to 9V Using NE555 Timer in Proteus | Step-Up Voltage Converter Tutorial

This video demonstrates a 3V to 9V boost converter using an NE555 timer and MOSFET-based switching in Proteus Software. The circuit converts low-voltage DC input to a higher output voltage using inductive energy storage and pulse generation, ideal for applications like powering 9V devices from a 3V battery.

Key Features:

NE555 Astable Mode: Generates precise timing pulses for switching.
Inductor (L1, 100µH): Stores and releases energy to increase voltage.
Zener Diode (D2, 1N4749A): Regulates output to 9V (9.02V in simulation).
MOSFET (Q1, 10BQ015): Handles high-current switching for efficiency.
Adjustable Duty Cycle: Use R1/R2/R3 to fine-tune output voltage.
How It Works:

Pulse Generation:
NE555 generates pulses with frequency set by R1 (1kΩ), R2 (330Ω), and C2 (10nF).
Formula: f=
(R1+2×R2)×C2
1.44
​
.
Energy Storage:
MOSFET (Q1) activates → Current flows through L1 → Energy stores in the inductor.
Voltage Boost:
MOSFET deactivates → L1 releases energy → Voltage spikes to 9.02V → D1 rectifies and D2 stabilizes output.
What you’ll learn:

How to convert low-voltage DC to higher voltages.
Role of inductors in energy storage and voltage boosting.
Importance of timing components (R/C) in 555 circuits.
Simulating real-world power supplies in Proteus.
⚠️ Safety Note: Always use heat sinks on MOSFETs for high-current applications.

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