As shown in the figure, the circuit diagram of 555 pyroelectric infrared sensing and light-controlled delay power-saving socket adopts TO-5 metal package, and the small window on the top surface of the casing and its transparent sheet can penetrate the infrared spectrum of 7-10μm. In order to increase the infrared detection distance, a Fresnel lens is installed in front of P228, so that the remote sensing distance can be opened at l0m. An FET (Field Effect) tube matcher is provided in P228. This device has an extremely high input impedance and a very low output impedance. This provides great convenience for the amplifiers it is connected to. The frequency of the sensing signal when the human body moves by P228 is approximately in the range of 0.3--5 Hz. Accordingly, a high gain low frequency amplifier that amplifies the weak signal can be designed.
Laptop power adapter charger for Asus:
Laptop Model
Power Adapter
K42F K42JB K42JK K42JR K42JV K52f A52f A42 X52f A52 A52f A52J
19v 3.42a, 5525
K60IJ K50IJ K50I K60I
19v 4.74a, 5525
Our service:
Stable output and high charging efficiency.
Elegant outlook design as original one, touch smoothly and comfortable.
Original charger is good, but as a replacement, our product has more reasonable price when your original charger is broken.
And, the market of the replacement adapters becomes bigger and bigger. People would rather buy a copy one then the original because of the price.
But at the same time, people worry about that they will buy something defective. So the problem comes, how to buy a good quality one with a good price?
As a professional power adapter manufacturer, we have excellent R&D team, skilled staffs and responsible after-sale service. All your benefits can be under protected after you buy products for our company.
Our certificates :ISO9001:2008 & ISO14001:2004 , CCC , CE , FCC , ROHS.
All our products has 1 year warranty. In other words, if you get the dad products which are not damaged physically from us in one year, we will replace you the new one or the whole bulk order.
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Shenzhen Waweis Technology Co., Ltd. , https://www.waweis.com