500 Watt Single Silicon High-frequency Power Inverter

Here's a 500 w single silicon high-frequency power inverter. Its main functions and features are:
1. Reverse power protection applied switching tube to do anti-reverse protection;
2. The fan applied delay shut off to ensure effective cooling of the device;
3. Applied LM358 for pre-amp over-current (short circuit) protection;
4. When the device temperature exceeds 75 degree, the machine will automatically shut down by normally closed temperature control switch. This will prevent damage of overheating;
5. Power-amp over-current and short circuit protection applied lock protection using current transformer isolated. After protection motion, we need to press the switch again to restart the device;
6. Including 5 seconds shut down function (to protect personal safety, duration adjustable);
7. Single silicon/mixer, dual adjustment;
8. Mature circuit, reasonable circuit designing, good consistency, component neatly symmetrical, elegant appearance.
As shown below:






Overall picture:




We Use:

• Three pairs of IRF3205 for power tubes;
• 1 EE42 for master transformer;
• 3 IRF3205 for reverse polarity protection;
• Power-amp silicon applied TYN1225;
• Off-capacitance capacitor use induction cooker capacitance;
• Inductance wound with induction cooker loop type;
• A dual voltage rectifying, rectification using HER508;
• Filter capacitor Pre-Amp applied two 4700UF/50V. Power-amp applied two 220UF/450V.

Main functions and features of the 500 watt power inverter Pre-Amp driver board:
1. Voltage range from 12V to 24V.
2. Including input reverse protection, first stage over-current (short circuit) protection.
3. Power-amp over-current and short circuit protection applied lock protection using current transformer isolated. After protection motion, we need to press the switch again to output driving signal.
4. Adjustable frequency 10KHZ to 40KHZ.
5. High power (B772/D882) output.
6. Set with 5 seconds automatic shutdown function, effectively protect personal safety.


Main functions and features of the 500w single silicon power inverter Power-amp frequency adjustment driver board:
1. Power reversely connects protection.
2. Frequency continuously adjustable.


Main functions and features of the 500 watt high-frequency power inverter Power-amp protection board:
1. Using LM393 to compare.
2. Applied current transformers, high-voltage isolation and high precision.




Power board rear PCB, produced by thermal transfer printing.
Renderings below: