New Spot welder control board thyristor module spot welder dedicated drive board

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Seller: vrg5612 (716) 99.6%, Location: shenzhen, Ships to: Worldwide, Item: 264071081233 New Spot welder control board thyristor module spot welder dedicated drive board DescriptionWhen DIY spot welding machine is used, the time switch control part is an indispensable important part. The integrated thyristor control board I made is popular among fans because of its low price and simple use. The thyristor used on the board is BTA41, after a period of time, a friend suggested that the thyristor current is somewhat small, and there is a phenomenon of over-current burning of the thyristor. Then, the control board using the BTA100 is used, and the control board for driving the solid-state relay is also made. Try to meet different needs. For the modification of high-power spot welding machine or the use of double-transformer to make spot welding machine, because the primary maximum current is often 40 to 50 A, even if the control board of 100A thyristor is not enough, it is recommended to use the control panel to drive large Current solid state relays, but without the ability to regulate current. I often visit Taobao fish, and I found that I have sold disassemble thyristor modules from time to time. The thyristor module has large current and low price, so I designed a spot welder control board using thyristor modules. After a period of trials, it was found that the expected effect of the design has been achieved, and the thyristor modules with different currents can be used for different transformers. Compared with the on-board thyristor integrated control board, it has the following similarities: 1. The front stage drive circuit is the same, and the time control mode is the same as the current adjustment mode; 2. The front-end power supply and the foot control switch are connected in the same way; 3. The control method of the thyristor is the same, and it is the primary control of the transformer of the series welding machine; 4. Potentiometer and LED indicator layout, the board can be changed without changing the panel. Compared with the onboard thyristor integrated control board, there are the following differences: 1. The thyristor module and the control board are separated, and the two are connected by a cable, and a thyristor module with different currents can be selected according to requirements; 2. The thyristor module with one-way double anti-parallel connection is not the SCR two-way thyristor used in the integrated board. The two thyristors are common and cannot be interchanged. 3. The overall cost is higher than the integrated board. For example, the same nominal 100A current is 20-30 yuan higher than the integrated board. In fact, the reliability is higher: the on-board 100A thyristor is domestically produced. Bulk components, 100A modular industrial products, the price difference between the two components is very large, the reliability of bulk components and industrial components is also different, even in this same quality of the SCR triac has no one-way double reverse Parallel thyristor modules are highly reliable. Purchase Notes: 1. The price indicated by Taobao is the price of the driver board, excluding the thyristor module in the figure, and the thyristor module needs to be purchased separately; 2. The driver board can be single-shot, and it is equipped with a thyristor module. The driver board is printed with a wiring diagram, which is connected according to the schematic diagram; 3. I bought some thyristor modules for the convenience of my friends. The current is from 70A to 200A. If I take the driver board and thyristor module from me, I will connect them better and then ship them. 4. The thyristor module generally shorts the 2 and 3 terminals and counts it as a contact, and then counts the two contacts of the switch as the switch to control the spot welder transformer, and blocks between the two contacts. The absorbing element absorbs the spike voltage. package : 1pc New Spot welder control board thyristor module spot welder dedicated drive board Payment1.We accept PayPal only. 2.All major credit cards are accepted through secure payment processor PayPal. 3.Payment must be received within 7 business days of auction closing. 4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.Shipping1.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. 2.Items will be shipped within 1-3 business day when we received payment. 3.Delivery time depends on destination and other factors; 4.International buyers please note: a.Import duties, taxes and charges are not included in the item price or shipping charges. These charges are buyer’s responsibility. We will try our best to reduce the risk of the custom duties. b.Please check with your country's customs office to determine what these additional costs will be prior to buying. 's customs office to determine what these additional costs will be prior to buying. Returns policy1.If the item is not as described or damaged in transportation, please send it back within 7 days upon date of receipt2.For defective item, we guarantee free exchange or full refund within 30 days from the day of placing order3.Buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements4.Items must be unused, in original packaging and include all parts, accessories and packaging5.When we receive your returned item, we will investigate the situation and consider to offer replacement or refund according to the situation Terms of sales1. All the items will be tested before shipping. Buy them with the confidence! 2. We maintain hightest buyer ratings StarStarStarStarStar and 100% customer satisfaction, Positive Feedback will be much appreciated from you.3. Any dissatisfaction or problem, please contact us before you leave neutral Neutral feedback rating or negative Negative feedback rating feedback. Feedback 1.When you received package and like it, kindly comfirm received order and leave a positive feedback with full stars for us. Thank you.2.Any dissatisfaction or problem, please contact us before you leave neutral Neutral feedback rating or negative Negative feedback rating feedback. Condition: New, Brand: Unbranded, MPN: Does Not Apply

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