SD331 Series Resonance Induction Heating Power Supply Module

I. Introduction

SD331 induction heating power supply control board adopt DSP construction, suitable for induction heating within 100KW. Mainly used in frequency adjustment & power djustment application. Frequency is 0.4~100kHz, highly digital and qulified design. Support remote & on site control method. It is Sinepower's induction heating power supply product with international advanced technology level independently developed and produced by the third generation. It uses IGBT as he inverter module. The control board is with phase miss protection, constant current output, cnstant power output, over voltage protection, constant temperature output, over current protection, short circuit protection, working indicator and other functions. Broadband frequency self-adaption, good anti-voltage fluctuation performance, high power factor, high efficiency and energy saving, intelligent protection system and other characteristics, suitable for thermal processing, heat treatment, thermal assembly, welding, smelting and other thermal processing industries of metal materials.

The main control board continues to lead the innovation of core control algorithms and software technology in the industry. The structure and operation processing speed of the control software package can ensure that the adjustment of all control loops can be completed quickly; at the same time, it has good reliability, stability, and strong anti-interference ability. Unique anti-interference measures, normal operation in harsh interference environment, control board self-diagnosis and load operation protection functions are complete, with power failure protection, overvoltage protection, overload protection, short circuit protection, etc. Therefore, whether it is external or internal, all kinds of interference and fault signals will make the performance of the control board safer and more reliable because of the above protection functions. The input and output all adopt isolation technology, which has a wide range of applications and has perfect fault detection and alarm indication. And protection function, all parameters are digital, no temperature drift changes, improve the adjustment accuracy and power utilization efficiency.

Model number	SD300	SD500	SD310	SD330	SD320
Main Structure	Double DSP+CPLD	Double DSP+CPLD	DSP+CPLD	DSP	Double DSP+CPLD
Resonance methods	Sereis resonance	Sereis resonance	Sereis resonance	Sereis resonance	Parallel resonance
Power	Within 5000Kw	Within 100Kw	Within 600Kw	Within 600Kw	Within 1000Kw
AD sampling accuracy	16 bytes	12 bytes	16 bytes	16 bytes	16 bytes
Control mode	PSM/PFM/DCM	PFM	PSM/PFM/DCM	PFM	SPFM/DCM
Input & output isolation	Full isolaion	Half isolation	Full isolaion	Half isolation	Full isolaion
Power supply design	Brand power double isolation	No Power isolation	Brand power double isolatio	Power isolation	Brand power  double isolatio
Input control port	12 roads	12 roads no isolation	8 roads	8 roads isolation	12 roads
Output control relay	10 raods	10 roads	4 roads	4 roads	10 roads
RS485 external communication	Yes	No	Yes	Yes	Yes
RS232 HMI communication	Yes	Yes	Yes	Yes	Yes
Hardwar quipment/ sofware function	High cnfiguraion, powerfull	Simplified version, regular	High cnfiguraion, powerfull	Simplified version, regular	High cnfiguraion, powerfull
Anti-interfer	High reliability	Standard	Hi reliability	Standard	Hi reliability
Performance	Expensive	High prformance	Better price	High performance	Better price

 

 

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STP01 LCD Operation Display Screen Module；SFP20 IGBT Driver Module。
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