Way of working Flyback converters using LinkSwitch-LP have an output VI characteristic similar to an unregulated power transformer power supply, but their output current is limited so that they do not exceed the maximum rated output power (peak power point). When the power supply is loaded from no load to a peak power point of 2 W, the LNK564PN (U1) uses the current flowing into the feedback pin (FB) to perform a "drop" switching cycle to adjust the output voltage. At the peak power point, the supply provides more than 300 mA of load current at voltages above 5.7 V. When the load exceeds the peak power point, the power loss cycle operation stops. U1 limits the output current of the power supply by lowering its oscillation frequency (switching frequency of the MOSFET). At this time, the voltage of the FB pin is also reduced accordingly. If the load change causes the FB pin voltage to fall below the auto-restart voltage threshold VFB(AR) of 0.8 V (when the power supply output is 1 to 1.5 V) and the duration is greater than 100 ms, the IC enters the auto-restart mode of operation. The MOSFET switch operates for 100 ms every 800 ms until the FB pin voltage is above 0.8 V. Due to the frequency modulation function of the U1 internal oscillator and the E-Shield shielding technology used in the transformer T1, it is sufficient to use the LC filter consisting of L1 and C1 for the conducted EMI attenuation of the power supply. Inductor L1 not only has the function of differential mode EMI suppression, but also functions as a fuse. The Filterfuse is to be wrapped with a heat-shrinkable tube, and the winding wire diameter is appropriate so that any component in the power supply can be disconnected like a fuse when it is damaged. Due to the tight current limit tolerance range of the LinkSwitch-LP series and the transformer winding technology in T1, the primary winding achieves a clampless circuit design. Its peak drain voltage does not approach the drain-source breakdown voltage (BVDSS) of U1. design feature 2W low cost flyback charger power PCB board 2W low cost flyback charger power supply circuit diagram 2W low cost flyback charger power supply PCB layout 2W low cost flyback charger power supply unit list See the PDF document for details (click on the PDF file to download) Outdoor Waterproof Wire Harness
Outdoor waterproof Wire Harness is mainly used in some outdoor equipment and underwater equipment, and have high requirements on the waterproofness of the wiring harness. Wire harness waterproofing is a necessary part of wire harness work. Once the waterproof wire harness fails, it is easy to cause abnormal operation of various electrical systems, affecting the comfort of the whole vehicle, and even causing great safety risks. After the design is completed, waterproof experiments should be carried out in order to check the reliability of the waterproof design.
In order to ensure the waterproof performance of the wiring harness, the Connector must provide a safe and reliable connection. Choose advanced waterproof structure design connector, the waterproof level is greater than or equal to IPX7 protection level. Choose connectors produced by regular manufacturers to ensure strict quality control system, excellent processing and assembly accuracy, and multiple performance testing. In order to ensure the waterproof performance of the connector.
Only through strict waterproof wiring harness design, purchase of Outdoor Waterproof Wire Harness produced by regular manufacturers, production in strict accordance with waterproof wiring harness technology, and rigorous and thorough quality inspections, can we produce qualified defensive wiring harnesses.
We can not only provide you with Outdoor Waterproof Wire Harness, but also other Industrial Cable Assembly, including Laser Welding Equipment Wiring Harness and Automatic Traffic Door Wiring Harness.
Outdoor Waterproof Wire Harness,Outdoor Waterproof Cable,Waterproof Harness,Exterior Grade Ethernet Cable Kable-X Technology (Suzhou) Co., Ltd , https://www.kable-x-tech.com
IP waterproof rating range
The waterproof test includes the second characteristic number from 1 to 8, that is, the protection class code is IPX1 to IPX8.
No protection No special protection
1 Prevent dripping water from invading Prevent vertical dripping water droplets
2 Water dripping is still prevented when tilted 15 degrees Water dripping is still prevented when electrical equipment is tilted 15 degrees
3 Prevent the intrusion of water jets Prevent rainwater, or water jetted from the vertical angle of less than 50 degrees
4 Prevent the intrusion of splashing water Prevent the intrusion of splashing water from all directions
5 Prevent the intrusion of water from large waves
6 Prevent the water intrusion of large waves Electrical equipment intrusion into the water can still ensure the normal operation of the equipment under certain conditions of time or water pressure
7 Prevent the intrusion of water intrusion Electrical equipment can still ensure the normal operation of the equipment under the condition of certain water pressure under the condition of submerged water indefinitely
8 Prevent the effects of sinking
