12V DC to 220V AC 40W Step-Up Inverter Booster Module

The 12V DC to 220V AC 40W Step-Up Inverter Booster Module is a compact second-generation high-frequency inverter board designed to convert a low-voltage 8V–13V DC battery supply into approximately 220V AC. It is suitable for DIY inverter projects, battery-powered applications, energy-saving lamp experiments, LED lighting projects, and electronic power-conversion applications.

The module uses a high-frequency switching design to increase the input voltage and generate a 220V AC square-wave output. With a rated output power of approximately 40W, it can be used with suitable low-power electronic loads such as compatible energy-saving lamps and other devices designed to accept its output waveform.

Its compact size of approximately 43 × 38 × 25mm makes it easy to integrate into DIY electronic projects, portable power systems, and custom inverter enclosures.

Features

• Second-generation step-up inverter module
• Converts 8V–13V DC to approximately 220V AC
• Recommended nominal input: 12V DC
• Rated output power: 40W
• High-frequency switching design
• High-frequency square-wave AC output
• Suitable for compatible low-power electronic loads
• Compact and lightweight design
• Suitable for battery-powered inverter projects
• Ideal for DIY power-conversion applications
• Useful for energy-saving lamp and LED experiments
• Easy to integrate into custom projects

Specifications

Design and Construction

The module features a compact PCB-based high-frequency inverter design for converting low-voltage DC power into high-voltage AC power. Its small form factor allows it to be installed in portable or custom-built electronic systems.

The module is designed around a high-frequency step-up conversion circuit that increases the input voltage before producing the high-voltage AC output. Its compact construction makes it suitable for DIY projects where space is limited.

Working Principle

The module accepts a DC input voltage in the range of approximately 8V–13V, with 12V DC being the nominal input. The input power is processed through a high-frequency switching circuit and transformer stage to generate an approximately 220V AC square-wave output.

The high-frequency switching operation allows the module to achieve a relatively high output voltage from a low-voltage battery supply while maintaining a compact size.

The output waveform is a high-frequency square wave, so the module should only be used with loads that are compatible with this type of output.

Applications

• DIY DC-to-AC inverter projects
• Battery-powered inverter projects
• 12V power-conversion experiments
• Energy-saving lamp applications
• Compatible LED lighting projects
• Mobile power systems
• Portable electronics projects
• Electronic power-conversion experiments
• Educational power-electronics projects
• DIY backup-power experiments
• Custom inverter development
• Low-power AC supply projects

Load Compatibility

The module produces a high-frequency square-wave AC output, which means it is not compatible with all AC appliances.

It should not be used directly with inductive loads, including:

• Motors
• Electric fans
• Coil-based devices
• Conventional transformers
• Other loads requiring sine-wave AC

Some simple resistive loads and certain low-cost LED lamps or resistance-based power supplies may also be incompatible with the high-frequency square-wave output.

Compatible electronic loads should be checked carefully before connection.

Operating Guidelines

• Use a suitable 8V–13V DC input, preferably 12V nominal.
• Never reverse the input power polarity.
• Ensure the battery or power supply can provide sufficient current.
• Do not overload the module.
• Do not short-circuit the output.
• Avoid continuous operation at the maximum rated load.
• For long-term operation, keeping the power supply around 80% of its maximum capacity is recommended to provide operating margin.
• Provide adequate ventilation and cooling during extended operation.
• Use suitable insulation and an enclosure for the high-voltage output.

Output Measurement Note

Because the output is a high-frequency square-wave AC signal, many standard multimeters may display an inaccurate voltage reading or show a value that appears unusually high or low.

For accurate measurement, use an appropriate meter or oscilloscope capable of measuring the module’s output waveform and frequency.

Safety Information

The output voltage can reach approximately 220V AC, which can be dangerous and potentially fatal. The module should only be used by users familiar with electrical safety and high-voltage circuits.

Always disconnect the input power before modifying wiring or handling the module. Keep the high-voltage output insulated and protected from accidental contact.

Package Includes

• 1 × 12V DC to 220V AC 40W Step-Up Inverter Booster Module

Product Disclaimer

Product images are for illustrative and representational purposes only. The actual product may vary slightly in colour, PCB layout, component placement, dimensions, markings, or overall appearance depending on the manufacturing batch.

The stated 40W output rating depends on the input voltage, available input current, load characteristics, cooling, wiring, and operating conditions. The module does not provide pure sine-wave AC.

This module has no output overload or short-circuit protection according to the provided specifications. Do not overload or short-circuit the output.

The module is intended for compatible electronic loads and DIY power-conversion applications. Always verify the voltage, waveform, frequency, and power requirements of the intended load before connecting it.