Hp CQ40 B+ Supply With Hp Adaptor Introduction

Cq40 is commonly using and very often find a laptop and its circuit is very basic similarities with other hp models. So I explained it’s main power source (B+)section First. it is Operate with hp’s 3 pin adapter architecture. It is very often used in others companies like dell, Lenovo etc. It protects system with external overvoltage and surges. When there is damage in the circuit it stops output from the adaptor. ID signal is used to operate charging Enable function.


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