Description
- Type: Logic ICs
- Condition: New
This is a flyback driver circuit designed by foreigners to drive high voltage packages because of Zero Voltage Switch.
Switching) is widely referred to as "ZVS" by domestic fans. Because of its high power, low fever, simple and reliable, fans should be widely applied.It is used to drive spark gap Tesla coil (SGTC) and Jacob ladder, Marx generator and other devices.
The ZVS drive circuit is made of high quality components with high reliability and high power. Input 12-30V/10A DC.Output high voltage direct current, voltage approximatelyIt is about 800 times the input voltage.
Pictures of finished products loaded on the shell:
Shell shipping list:
(1) 1 sets of transparent acrylic shell.
(2) set of fixed screws:
30MM double copper column 4
M3*10 screws 9
The outer shell is transparent acrylic, and the shipping outer shell is bulk. Please note that the assembled outer shell is hollow, which is not good for delivery and easy to crush.
There is a protective layer on both sides of the delivery object. Before installation after receiving the goods, the protective layer should be torn open and reassembled.
Shell acrylic picture:
Schematic diagram
Product parameters:
Product size: 74mm * 77.8mm;
Shell size: 102*88*42.5MM;
Input voltage: DC 12V-30V
Power requirements: less than 12V equal to 5A 15V above 15A
Working frequency: 30kHz-50kHz adaptive
Secondary parameter: 5T+5T
About discharge arc length: when the input voltage is 12v/5A, the distance of high voltage arc discharge is about 1-Twocentimeters. The greater the input voltage and the current, the output power.The greater the rate, the longer the discharge arc distance, the maximum input 30v/10A, the longest can be more than 5 centimeters. If the arc is too short, please check the input work.Is the rate adequate?
Choice of power supply: If using batteries, use aeromodelling batteries with discharge rate of more than 25C. Never use ordinary electric car batteries or car batteries. If switching power supply is used, switching power supply or linear power supply with 12V and 24V should be more than 5A. If the current is not enough, the tube will break through.
Input voltage and current output voltage maximum power
12V/5A about 10000V 60W
24V/10A about 20000V 200W
The components used in this drive circuit are all new and original except IRF260. The circuit board is double-sided, and the whole back is used.As the line of the resonant circuit, the surface has less resistance, fewer heat and good heat dissipation. Its excellent performance is not comparable to that of a single panel.
Characteristic
1. Using military FR4-A material 1.6mm double-deck circuit board, the power line is added extra tin, and the line width of MOS tube drive line is optimized.Flow capability is stronger! Full symmetry wiring, low density element layout, each original heat dissipation is better! Especially capacitance, (other people's board design mini).In particular, the 2 capacitors are placed side by side for poor heat dissipation.
PCB front view:
Pictures on the back of the circuit board:
Pictures on the back after welding.
2. Use two original dismantling machines IRFP260N as power field transistors, with high current, low internal resistance and super power. Pay attention to 99% new IRFP260N of Taobao.Domestic, in fact, the internal for small chips, pin metal sheet thin, much lighter weight than the original, poor performance! The whole board is 2 and 260 belong to wastage products. It is suggested that 1-2 fillets should be taken by themselves.
3. Customized large inductance (1.2 copper wire winding) by professional factory, with neat workmanship, more stable performance and long 15A current.
4. Power resistor uses 5-ring 1% precision 3W metal film resistor, which has smaller error, higher accuracy, smaller temperature drift and better heat dissipation. Use more stable! 
5. Use super-large 25*24*16mm thick anti-static high-quality radiator, heat dissipation effect is better, stability and life greatly improved!
6. the specially designed two BM cards MKP 0.33UF 1200V are connected as high frequency resonant capacitors in parallel.
About the high voltage package: the ordinary black and white color TV's high pressure bag can be used, regardless of the type. The greater the power, the better. High pressure package driven by ZVSIt is already overloading the high-pressure package, so breakdown damage is a normal phenomenon, not the quality problem of the high-pressure package, please try not to do great work.Rate long term work! (high pressure package belongs to consumables. Please use high quality, high power and high pressure package to prepare several.
High Voltage Package Primary Winding: Primary winding should be made in the same direction by using 1.5MM square wire 5 coils + 5 coils (i.e. 10 middle taps).Please make your own purchase or sell it separately, locally sold).
Details of winding method:
When the new high-pressure package reaches the hand, cut off the following two pieces and connect them from the second foot of the side door as an output pole. After the 2 lines are cut off, it is better to manage. Hot melt adhesive, after welding, then hot melt adhesive, sealing all pins. 
About discharge arc length: when the input voltage is 12v/5A, the distance of high voltage arc discharge is about 1-2 centimeters. The greater the input voltage and the current, the output power. The greater the rate, the longer the discharge arc distance, the maximum input 30v/10A, the longest can be more than 5 centimeters. If the arc is too short, please check the input work. Is the rate adequate?
About power: The output power of the circuit depends on your input power. If your power supply only has 30W power, what if you make a 200W zvs? The output is not up to 100w, 200W, so the input power must be sufficient, power = voltage * current!
When using switching mode power supply, please note that the output voltage rises slowly when the power is started, because the high power usually has a slow start function, and the output voltage rises slowly when the power is started. If the inductance ZVS circuit is switched on before the voltage rises to 12V, it will not oscillate due to insufficient starting voltage, resulting in two MOS transistors conducting from the same time. And burn down the components. Therefore, the switching power supply should start first, and the voltage will reach more than 12V, then the ZVS circuit will be connected.
Matters needing attention
1. carefully check the drawings several times after installation, confirm that all components are welded correctly.
2. please pay attention to the positive and negative sign of the power input terminal of the drive plate, and then turn it on after checking and confirming, so as to prevent the reverse firing plate.
3. the voltage of the test machine is recommended as a small power 12V, to prevent problems or to burn the plate due to incorrect alignment.
4. The limit input of the driving board is 30V DC and 10A current. It is not recommended to use the limit value. Do not operate for a long time under the condition of over-voltage and over-current. drive The plate is not suitable for induction heating. If it is used for induction heating, it is recommended that the input voltage is below 15V. For induction heating or high-power long time. When used, fans must be added to dissipate heat. If the heat dissipation is not good, the temperature of the MOS tube will be too high, which will accelerate the aging and even burn out of the MOS tube. .
Attention: High-voltage danger!!!! When driving high-voltage package, it is high-voltage output. Use it safely, not to play after drinking, not to mention the whole person!
Spare parts shipping list:
Element name Quantity element label
PCB air plate 1
HB9500-2 connection block 1 J1
HB9500-3 connection block 1 J2
Heat sink 2 Q1/Q2
Insulated conductor 2
M3*8 screw 2
IRF260 (dismantling machine) 2 Q3/Q4
0.33UF 1200V capacitor 2 C1/C2
100UH 15A inductor 1 L1
3W 470 European resistor 2
12V 1W voltage regulator diode 2 D1/D2
10K resistance 0.25W 2 R2/R3
UF4007 ultra fast recovery diode 2 D3/D4
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