Features: The schematic diagram is as follows, the power supply label description: Control interface description: typical application:
We are a professional manufacture in producing Carbdie Taps. We offer a complete range of taps in carbide, CPM and HSS-E.
we provied regular stock, and we also provide customization for your designs and logo. It is important to choose a professinonal manufacture to work with you, in order to communicate every details in the design. Our reputation has been built on quality, design and service – all at a competitive price. No matter you are a agent buyer or a factory source for self-use, we will be your most trusted partner.
Customized Carbide Taps are tools for processing internal thread. According to the shape, it can be divided into a spiral tap and a straight blade tap. According to the use environment, it can be divided into a hand tap and a Machine tap. According to the specifications, it can be divided into metric, American and British taps. Taps are the primary tool for manufacturing operators to machine threads.
We can customize products according to customers' needs.
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We are specialize in manufacturing PCD diamond tools and Carbide tools. Our major product inclulde PCD Inserts , PCD Reamers , PCD End Mills, PCD Taps, Cabide Inserts,Carbide Drills, Carbide Reams, Taps etc.,
We also offered customized cutting tools per drawings, and provide package according to customer requirements. We manufacture a series range of cutting tools for machining of Cast iron, Aluminium alloy and Non-Ferros metal, it is widely used in all major sectors like Automobiles, Engineering, Aerospace, Aviation and 3C industry. Premium quality of raw material is used in the production and strict examination during processing with advanced equipment, so our client are satisfied with our reliable quality and on-time delivery.
Our best selling of cutting tools include PCD Inserts, PCD End Mill, PCD Ball Nose Mill, PCD Reamer, Carbide Taps , Carbide End Mill, Special Form Cutter and many more. For these years we have been made a large forward in the technologies of manufacturing cutting tools. With high quality on performance and price, our product sells well both on domestic and overseas market. And we will always focus on the quality and best service, to make long business relationship.
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1, support tact switch, self-locking switch
2, support external power supply automatically power on ( soldering on D17 can be achieved)
3, support standby constant current output
4. The external power supply and the lithium battery power supply are automatically switched. Due to the existence of the freewheeling diode in the PMOS, the voltage drop does not occur during the switching process.
5, through the double PMOS back to back connection, to prevent external power supply from pouring into the lithium battery
1, VCC_5V0 external power input
2, LI_BAT lithium battery
3, VCC_SYS main power output
4, VCC_SB standby power output
1. EX_PWR_KEY switch button input, external tact switch or self-locking switch, active low.
2, PWR_KEY_DET switch button detection, for the microcontroller to detect the switch state, mainly suitable for the use of tact switches.
3, SYS_PWR_HOLD power supply, active high, useful when using a tact switch, or the system wants to control the shutdown itself
1. The power switch uses the tact switch to control the SYS_PWR_HOLD by detecting the PWR_KEY_DET state, enabling a long press of xx seconds, the system is powered on, and the long press is xx seconds, and the system is shut down.
2, the vehicle equipment, D17 external ACC signal, to achieve car ignition, the device automatically starts, the car is turned off, after the delay xx time, automatically shut down.
3. Use the self-locking switch to disconnect D17. It does not need PWR_KEY_DET and SYS_PWR_HOLD to realize automatic switching between external power supply and built-in power supply, and small self-locking switch to control large current on and off. 
