我想做一个玩具用充电器:
1、现状都是需要一个PWM 控制器加充电IC来实现充电的吗?充1200mah左右锂电池用什么型号搭配最具成本优势?
2、有没有什么方案是可以不使用DIP引脚元件的?(尽量使用SMT的元件,这样就不需要用到波峰焊设备来实装电路板了)
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
前级就是AC转DC吧
看看这儿链接
http://www.ti.com/tool/PMP40228?keyMatch=null&tisearch=tidesigns-power
有完整的AC转DC的原理图,BOM和测试结果
一层板就可以。通过EMI测试,而且面积只有41mm*38.5mm
The PMP40228 is a reference design for 5V 2A adapter applications. The solution implements a high efficiency primary side controller UCC28704, it meets COC V5 Tier2 2016 specification with 130mOhm cable, it is fully test and passes conduction EMI. The board uses a single layer PCB and diode rectifier, it is a cost-effective solution with Low BOM cost. The board measures 41mm x 38.5mm x 15mm.