1. Pengenalan
This document provides essential information for the safe and effective use of the Generic 40W 12V DC to 220V AC Power Inverter Unit. This unit is designed to convert a 12V DC power source into a 220V AC output, suitable for powering small electronic devices.
Ciri-ciri utama termasuk:
- Input: 12V DC.
- Output: 220V AC.
- High-frequency output for stable power delivery.
- Capable of operating 40W energy-saving lamps.
- Designed for integration into circuit boards for various household appliances.
- Offers enhanced performance, stable power, improved efficiency, and durable quality.
- Supports DIY booster circuit creation.
2. Maklumat Keselamatan
Sila baca dan fahami semua arahan keselamatan sebelum mengendalikan peranti ini. Kegagalan mematuhi arahan ini boleh mengakibatkan renjatan elektrik, kebakaran atau kecederaan serius.
- Bahaya Elektrik: This unit produces 220V AC. Handle with extreme care.
- Pengudaraan: Pastikan pengudaraan yang mencukupi di sekeliling unit untuk mengelakkan terlalu panas.
- Kelembapan: Do not expose the unit to water, rain, or excessive humidity.
- Lebihan beban: Do not exceed the maximum rated output of 40W. Overloading can damage the unit and connected devices.
- Kekutuban: Observe correct input polarity (positive and negative) when connecting the 12V DC source. Incorrect polarity will damage the unit.
- Kanak-kanak: Jauhkan daripada kanak-kanak.
- Pemasangan Profesional: If you are unsure about installation or wiring, seek assistance from a qualified electrician.
3. Produk Lebihview dan Komponen
The inverter unit is a compact circuit board designed for integration. It features input terminals for 12V DC and output terminals for 220V AC.

Rajah 3.1: Atas view of the inverter unit, displaying its main components.

Rajah 3.2: Bersudut view of the inverter unit.

Rajah 3.3: Bawah view of the inverter unit circuit board.

Figure 3.4: Labeled bottom view showing input and output connections.
As shown in Figure 3.4, the input for 8-12V DC is located at the bottom of the board, and the 220V AC output is at the top (A + B port).
4. Persediaan dan Pemasangan
This inverter unit is designed for integration into custom circuits or existing appliances. Follow these steps for basic setup:
- Prepare the Power Source: Ensure you have a stable 12V DC power source (e.g., a car battery, 12V power adapter). The input voltage range is 8V to 12V DC.
- Kenalpasti Sambungan: Refer to Figure 3.4 for the input and output terminals. The 12V DC input has clearly marked positive (+) and negative (-) terminals. The 220V AC output is labeled as A + B port.
- Connect DC Input: Carefully solder or connect your 12V DC power source to the designated input terminals, observing correct polarity. Connect the positive lead of your DC source to the '+' terminal and the negative lead to the '-' terminal.
- Sambungkan Output AC: Connect your 220V AC load (e.g., energy-saving lamp, router) to the A and B output ports. Ensure all connections are secure and insulated to prevent short circuits.
- Pemasangan: Secure the circuit board in a stable, well-ventilated enclosure to protect it from physical damage and ensure proper heat dissipation.
Note: This unit is a bare circuit board. Proper enclosure and insulation are required for safe operation.
5. Arahan Operasi
Once the unit is correctly installed and connected, follow these steps for operation:
- Sahkan Sambungan: Double-check all DC input and AC output connections to ensure they are secure and correctly polarized.
- Apply DC Power: Turn on your 12V DC power source. The inverter unit will begin converting the DC power to AC.
- Connect AC Device: Plug your 220V AC device (up to 40W) into the output of your circuit.
- Pantau Prestasi: Observe the connected device to ensure it is functioning correctly. If any issues arise, immediately disconnect the power source and troubleshoot.
- Memutuskan sambungan: To turn off the system, first disconnect the AC load, then turn off the 12V DC power source.
Important: Do not exceed the 40W output capacity. Exceeding this limit can cause damage to the inverter and connected devices.
6. Penyelenggaraan
This inverter unit requires minimal maintenance. Adhere to the following guidelines to ensure longevity and reliable performance:
- Jaga kebersihan: Regularly inspect the unit for dust and debris. Use a soft, dry cloth to clean the surface. Do not use liquids or abrasive cleaners.
- Pengudaraan: Ensure that the unit's operating environment allows for proper airflow to prevent heat buildup.
- Sambungan: Periodically check all electrical connections for tightness and signs of corrosion. Re-tighten or clean as necessary.
- Storan: When not in use for extended periods, store the unit in a cool, dry place away from direct sunlight and moisture.
7. Penyelesaian masalah
If you encounter issues with your inverter unit, refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada output AC | No 12V DC input power; Incorrect DC polarity; Faulty connections; Overload. | Check DC power source; Verify DC input polarity; Inspect all wiring; Reduce AC load to below 40W. |
| Keluaran AC rendah voltage | Input DC rendah voltage; Beban berlebihan. | Ensure DC input is stable 12V; Reduce AC load. |
| Unit terlalu panas | Poor ventilation; Overload. | Ensure adequate airflow around the unit; Reduce AC load. |
| Connected device not working | Device requires more than 40W; Device incompatible with modified sine wave output (if applicable); Faulty device. | Check device power requirements; Test device with a standard AC outlet; Consult device manual. |
If the problem persists after attempting these solutions, discontinue use and consult a qualified technician.
8. Spesifikasi

Rajah 8.1: Dimensi produk.
| Spesifikasi | Nilai |
|---|---|
| Model | 40W 12V DC to 220V AC Inverter Unit |
| Input Voltage | 8-12V DC |
| Keluaran Voltage | 220V AC |
| Kuasa Keluaran | 40W (Maksimum) |
| Dimensi Produk | 3.9 x 2.5 x 4.35 cm (kira-kira 1.5 x 1.0 x 1.7 inci) |
| Berat badan | 10 gram |
| ASIN | B0BLLV1GHS |
9. Waranti dan Sokongan
This product is sold as a component. Specific warranty details may vary depending on the retailer or the final assembled product. For support, please refer to the vendor or platform from which this product was purchased.
Sentiasa simpan bukti pembelian anda untuk sebarang tuntutan jaminan atau pertanyaan sokongan.





