1. Introduction
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 Contenu du paquet
- 1 x LiebeWH High Voltage Flyback Transformer Module
2. Consignes de sécurité
WARNING: This product generates high voltage. Improper use can result in serious injury or death. Always exercise extreme caution when handling this module.
- Ne touchez pas le haut voltage 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.
- Travailler dans un endroit bien aéré.
- This module is intended for educational and experimental purposes by experienced individuals. Not suitable for unsupervised use by children.
3. caractéristiques du produit
- Construction durable : Made from quality materials for extended operational life.
- Vol élevétage Sortie : Capable of generating up to 15KV from a low voltage entrée.
- Application polyvalente : Suitable for scientific experiments, electronic projects, and negative ion generation.
- Integrated Windings: Features primary and feedback windings for efficient operation.
4. Spécifications
| Paramètre | Valeur |
|---|---|
| Vol d'entréetage | 3.7 V - 4.2 V CC |
| Courant d'entrée | ≤ 2 A |
| Volume de sortietage | ≤ 15 KV |
| Vol élevétage Ignition Distance | 0.5 - 1 cm (0.2 - 0.4 pouces) |
| Approximate Module Dimensions (L x W x H) | 25 mm x 20 mm x 15 mm |
| Fabricant | LiebeWH |
| Numéro de modèle | LiebeWH69v2mgr3eb |
| Source d'énergie | Filaire électrique |
| Type de montage | Montage en surface |
| Pays d'origine | Chine |
5. Configuration et câblage
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.
- Important: 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)
- Le haut voltage 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. Mode d'emploi
- Vérifiez les connexions : Double-check all input and output wiring according to Section 5.
- Assurer la sécurité : Confirm that all safety precautions from Section 2 are in place. Wear appropriate personal protective equipment.
- Appliquer la puissance : Connect the 3.7V-4.2V DC power supply to the module.
- Observer l'opération : 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.
- Éteindre: 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. Entretien
- Veillez à ce que le module reste propre et exempt de poussière et de débris.
- À conserver dans un endroit sec, à l'abri de l'humidité et des températures extrêmes.
- Regularly inspect wiring for any signs of damage or wear. Replace damaged wires immediately.
- Assurer une ventilation adéquate pendant le fonctionnement pour éviter la surchauffe.
8. Dépannage
| Problème | Cause possible | Solution |
|---|---|---|
| Pas de vol élevétage sortie | Volume d'entrée incorrecttage or current; incorrect wiring; faulty power supply. | Vérifier le volume d'entréetage (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 sortie. |
| Étincelle faible ou irrégulière | Faible volume d'entréetage; poor contact at output terminals. | Confirmer le volume d'entréetage is within the specified range. Ensure clean and secure contact at the high voltage output points. |
9. Garantie et assistance
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.
Manufacturer: LiebeWH
Pays d'origine : Chine