Soft Start PCB 1000W by moutoulos™

Description: ; Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Official PayPal Conversion Rates Add Currency Converter To Your Items Soft Start 1000W (moutoulos™) The delay is intended to switch on the mains to heavy loads gradually to ensure that the switch-on current remains within certain limits and to prevent the fuses from blowing. The elements that cause high currents at switch-on are, for instance, the electrolytic capacitors in the power supply of an output amplifier. Since these are not charged at switch-on, they constitute a virtual short-circuit on the supply lines. The current can, however, be kept within limits by inserting the present delay circuit between the mains outlet and the transformer primary. The amplifier is then powered in two stages: in the first instance, the current is limited by a number of heavy-duty series resistors a second later these resistors are shunted (short-circuited) by a relay contact. In the diagram, R4–R7 are the heavy-duty series resistors, each with a value of 10 ohm and rated at 5 W. They limit the switch-on current to about 5.5 A. After relay close, the 230VAC PCB rail is ready for 2000w continuous. The relay is a type whose contact is rated at 2000 VA, which will be sufficient in most cases. Its supply is derived directly from the mains via potential divider R3-C1-B1-relay coil. The resistor, R3 limits the current at switch-on, after which C1 limits the current in normal operation to about 20 mA. The delay time is determined by electrolytic capacitors C2 and C3 in parallel with the relay. The delay time may be altered by suitably changing the value of one or both of these capacitors. For safety’s sake, the board also has provision for a mains fuse, F1. The rating of this depends, of course, on the current drawn by the load. It should be noted that in the case of a double-mono stereo output amplifier (with separate power supplies) each of the mono amplifiers must be given a mains-on delay. Note that C1 is a metallized paper type, wich is designed specially for mains voltage applications and meets stringent regulatory requirements. Finally, at all times bear in mind that the circuit is connected to the mains, so do not touch anything inside the unit during operation and make sure that all wiring is safe and secure. *Regards* ® 2018 (c) moutoulos ™ www.moutoulos.com Amazing Boards PCBs Check out my other items !!! Read Before Buy-Bid: I don't sell instruction for this project, only PCB. From the day order under normal circumstances, shipping takes approximately 10-14 business days. This is one piece. More pieces (quantities) it is possible, but contact me first. Payment - Shipping - Policy ----------------------------------- We accept payment through Paypal ONLY . We will ship to Worldwide. If you do not have Paypal account, register in https://www.paypal.com. Payment must be received within 2 days after auctions ended. Unpaid dispute will be filed to ebay for the non payable bidders. Shipping Terms All orders will be processed in 2 days from the date of payment or the date of e-Check is cleared. The delivery confirmation will be sent via e-mail when your order is processed. Under normal circumstances, shipping takes approximately 7-14 business days. Shipping and handing fee covers mailing, packing, warehouse and distribution costs, not postage only. Shipping insurance is offered at 2.00 per item. Should you choose to decline shipping insurance you accept full responsibility for all damages or losses incurred in the shipping process. Feedback and Detailed Seller Ratings Dear buyers, if you are satisfied with our service, leave us a positive feedback. Our system will automatically do the same for you. If you have any problems, don't leave negative or neutral feedback, contact us first to solve the problem. Contact UsIf you have questions, contact us, we are very glad to help you. Please allow us to reply your email within 24hrs. Thanks For Looking !!!!. Track Page Views With Auctiva's FREE Counter

Price: 8.2 USD

Location: Patra

End Time: 2024-01-09T11:31:22.000Z

Shipping Cost: 2.5 USD