Cost less than 5 yuan, reliable single-fire power supply solution (using NP101A chip, including PDF...

forrestyuan

Cost less than 5 yuan, reliable single-fire power supply solution (using NP101A chip, including PDF... [Copy link]

DC-DC power module, output 3V,no-load current 3uA, if used to power lamps,3W LED lamp, the current is above 2mA, the light will not flicker, proving that this solution has high conversion efficiency, stable and reliable. (See the specification sheet at the end of the article for details) The operating voltage is 9V~380V, and the maximum output current is 50mA. In addition to being suitable for powering touch switches, it is also suitable for Zigbee, 433, 315 and low-power Bluetooth communications. This power module provides relay and thyristor solutions.The solution information is completely open, and the production cost can be reduced to less than 5 yuan, which is significantly lower than similar products on the market. Moreover, the module has stable and reliable performance and is suitable for non-isolated home appliances and smart home products. This content is originally created by forrestyuan, a netizen of EEWORLD forum. If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source

qwqwqw2088

After the product is made, how to pass 3C certification? Is there any plan to consider?

dfwisdom

Is there a BOM price list?

懒猫爱飞

Let’s take a look first^_^

power139

Single live wire solution selection suggestions:

1) Low-cost single-live solution: RCC + thyristor solution, the cost is lower than other single-live solutions,
disadvantage: easy to break;
reason for selection: the switch price is low enough, if it breaks, it can be replaced, 365 days a year!

2) High-quality single-live solution: XD3390A + XD-KC024, the performance is better than other single-live solutions,
disadvantage: slightly more expensive;
reason for selection: specializes in single-live, more professional.

ul716

Don't be greedy for cheapness when choosing a solution. Consider the stability of the product and the maximum output current. Connect dozens of LED lights and hundreds of watts of lights to the test without damage after continuous switching. Support high current operation. Recommend a high-power MP-6V-04S single-fire module with ultra-small package to support 1-2000W lamps. There is also a low-cost BSW-6V-04S solution, which focuses on stability and cost-effectiveness. The actual test results are good. Engineers should keep their eyes open when choosing solutions and compare prices from three suppliers.