Atomic Chasing Light 7 Led Student Electronic Learning Circuit Board Assem

US $1300

Bangkapi, BA, Thailand
Jun 20th

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FA150 ATOMIC CHASING LIGHT 7 LED,STUDENT ELECTRONIC LEARNING CIRCUIT BOARD, ASSEMBLED KIT Technical information • Requires : 9-12 VDC. • This circuit is the chasing light circuit. • The shape is same as atomic. • This circuit is consist of 7 LEDs. • Idea as light-shows for model construction etc. • Current consumption about 24-33mA (max.) • Recommended Housing: FB03 • IC board dimension : 1.76 in x 2.37 in An atomic shaped flasher circuit is used for light decoration and various applications. 7 LEDs will display in an atomic shape that having molecule runs around a nucleus. How does to work It is a frequency generating circuit that works in steps as shown in Figure 1. There are 3 alike component sets being jointly connected and having 3 sets of R1, R3, R5 and C1-C3 for controlling the flashing speed of LEDs. R2, R4, R6 will act as a load reducer for LEDs. The circuit will start working with 2 reducers for each time. Step 1, TR1 and TR2 will start working and cause LED1-4 being off due to voltage that supply to LEDs being grounded. However, LED5-7 will be lit as TR3 does not work. Step 2, TR2 and TR3 will work and cause LED3-7 being off. LED1-2 will be lit as TR1 does not work. Step 3, TR1 and TR3 will work and cause LED1-2 and LED5-7 being off. LED3-4 will be lit as TR2 does not work in steps like those for long. Circuit Assembly The assembly of components is shown in Fig. 2. For good looking and easy assembly, the shorter components should be first installed - starting with low resistant components and then the higher. An important thing is that diodes, electrolyte capacitors, and transistors shall be carefully assembled before mounting them onto their right anode/cathode of the IC board otherwise it might cause damage to the components or the circuit. Configuration of the anode and the cathode is shown in Fig 3. Use the soldering iron/gun not exceeding 40 watts and the solder of tin-lead 60:40 with flux within. Recheck the correctness of installation after soldering. In case of wrong position, just use lead absorber or lead extractor wire to avoid probable damage to the IC. Testing Supply 9VDC to the circuit, LEDs will start being lit in the manner of running light moving around the center one. Any required flashing speed can be adjusted by increasing or decreasing the C1-C3 value. Those above results will show that the circuit is workable Free Shipping Handling WORLDWIDE. The package will be shipped directly from Thailand via Economy/Standard Small package Airmail, and it will take about 11-23 Business Days (or about 2-5 Weeks) **Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. **Please check with your country’s customs office to determine what these additional costs will be prior to bidding / buying Return Policy 100% Satisfaction Guarantee: If you are not satisfied with the product you purchased for any reason, please contact us for a return instruction within 30 days Shipping Handling costs are not refundable. Return shipping cost will be paid by buyer. We accept ONLY PayPal for payment. Contact us Please contact us by eBay message only.