1. Introducción
This manual provides essential information for the safe and effective use of the LiebeWH HV3.7V-4.2V to 15KV High Voltage Flyback Transformer Module. This module is designed for various applications including high school science experiments, electronic instruments, negative ion generators, and small-scale scientific production.
The module converts a low input voltage (3.7V-4.2V) into a high output voltage (up to 15KV), making it suitable for generating high voltage pulses.
1.1 Contenido del paquete
- 1 x LiebeWH High Voltage Flyback Transformer Module
2. Información de seguridad
WARNING: This product generates high voltage. Improper use can result in serious injury or death. Always exercise extreme caution when handling this module.
- No toque el alto vol.tage output terminals while the module is powered.
- Ensure proper insulation and isolation from other components and personnel.
- When operating in air, the module generates high temperatures and can easily ignite flammable materials such as paper, plastic, or thin wires. Keep away from combustible substances.
- Always use appropriate safety equipment, including insulated gloves and eye protection.
- Operar en un área bien ventilada.
- This module is intended for educational and experimental purposes by experienced individuals. Not suitable for unsupervised use by children.
3. Características del producto
- Construcción duradera: Made from quality materials for extended operational life.
- Alto voltage Salida: Capable of generating up to 15KV from a low voltage entrada.
- Aplicación versátil: Suitable for scientific experiments, electronic projects, and negative ion generation.
- Integrated Windings: Features primary and feedback windings for efficient operation.
4. Especificaciones
| Parámetro | Valor |
|---|---|
| Vol de entradatage | 3.7 V - 4.2 V CC |
| Corriente de entrada | ≤ 2 A |
| Vol de salidatage | ≤ 15 KV |
| Alto voltage Ignition Distance | 0.5 - 1 cm (0.2 - 0.4 pulgadas) |
| Approximate Module Dimensions (L x W x H) | 25 x 20 x 15 mm |
| Fabricante | LiebeWH |
| Número de modelo | LiebeWH69v2mgr3eb |
| Fuente de poder | Eléctrico cableado |
| Tipo de montaje | Montaje en superficie |
| País natal | Porcelana |
5. Configuración y cableado
The LiebeWH High Voltage Flyback Transformer Module requires careful wiring to ensure correct and safe operation. The primary winding has two parts: a main winding and a feedback winding. The low voltage winding is on the outer layer, and the high voltage winding is encapsulated in the inner layer.

Figure 5.1: LiebeWH High Voltage Flyback Transformer Module. This image shows the compact design of the module with its input (red and green) and output (multiple thin copper) wires clearly visible.
5.1 Input Connections (Low Voltage)
- Identify the two thick and thin coiled copper wires. These are the positive poles for the primary winding.
- One wire corresponds to the 'main winding' and the other to the 'feedback winding' head.
- Connect these two wires to the positive terminal of your 3.7V-4.2V DC power supply.
- The remaining wire (typically green or another color, as shown in images) is the negative input. Connect this to the negative terminal of your power supply.
- Importante: Do not confuse the low voltage input windings with the high voltage output windings. Incorrect connection can damage the module or your power supply.

Figure 5.2: Module in operation context. This image illustrates the module's potential for generating electrical discharges, emphasizing the need for safety precautions.
5.2 Output Connections (High Voltage)
- El alto volumentage output is typically from the thicker, insulated wires that are part of the inner winding.
- Ensure these output wires are properly insulated and routed away from other components and conductive surfaces.
- Maintain a safe distance between the high voltage output terminals (0.5-1 cm for ignition distance).
6. Instrucciones de funcionamiento
- Verificar conexiones: Double-check all input and output wiring according to Section 5.
- Garantizar la seguridad: Confirm that all safety precautions from Section 2 are in place. Wear appropriate personal protective equipment.
- Aplicar energía: Connect the 3.7V-4.2V DC power supply to the module.
- Observar la operación: Upon power application, the module will begin generating high voltage. While no crackling sound may be heard in the air, the high voltage output will generate significant heat and can ignite flammable materials.
- Apagado: Disconnect the power supply when operation is complete. Allow sufficient time for any residual charge to dissipate before handling.

Figure 6.1: Module integrated into a circuit. This image shows the module against a circuit board pattern, suggesting its use in electronic projects.
7. Mantenimiento
- Mantenga el módulo limpio y libre de polvo y residuos.
- Store in a dry environment, away from moisture and extreme temperatures.
- Regularly inspect wiring for any signs of damage or wear. Replace damaged wires immediately.
- Asegúrese de que haya una ventilación adecuada durante el funcionamiento para evitar el sobrecalentamiento.
8. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| Sin alto volumentage salida | Volumen de entrada incorrectotage or current; incorrect wiring; faulty power supply. | Verificar volumen de entradatage (3.7V-4.2V) and current capacity of power supply. Check all wiring connections, especially the primary and feedback windings. Test power supply independently. |
| Module overheating rapidly | Excessive input current; insufficient ventilation; short circuit in output. | Ensure input current does not exceed 2A. Provide adequate ventilation. Check for any unintended contact or short circuits at the high voltage salida. |
| Weak or inconsistent spark | Bajo volumen de entradatage; poor contact at output terminals. | Confirme el volumen de entradatage is within the specified range. Ensure clean and secure contact at the high voltage output points. |
9. Garantía y soporte
For warranty information or technical support, please contact your retailer or the manufacturer, LiebeWH, directly. Please have your model number (LiebeWH69v2mgr3eb) and purchase details available when contacting support.
Fabricante: LiebeWH
País de origen: China