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Designation

C1
C2
D1-11
R1
R3
R4
U1

Value

0.1uF
0.1uF/1uF/4.7uF
20mA, 2.5V, Blue
10K, 1/4W
2K, 1/4W
2K/4.7K/10K/20K

Name

Ceramic Capacitor
Ceramic Capacitor
LED SMD
Resistor
Resistor

Resistor

Footprint

0805
0805
0805
0805
0805
0805

Datasheet

NE555

CD4017

Timer
Decade Counter

SOP8
SOP16

Circuit - Bill of Materials (BOM)

Circuit - Identifying Components

Designation

C1, C2

D1-11
R1, R4
R3, R4
R4

Value

0.1uF

20mA, 2.5V, Blue
10K, 1/4W
2K, 1/4W
4.7K

Illustration

Packaging Description

White paper strip

1uF

Transparent plastic strip

4.7uF

Transparent with pen mark
Black plastic strip
White paper strip (1002)
White paper strip (202)
White paper strip (472)

20K

White paper strip (2002)

U1
U2

NE555
CD4017

In black plastic
In black plastic

202

CD4017B

NE555

202

472

202

2002

1002

202

1002

202

472

2002

Содержание SABER CARD

Страница 1: ...I N S T R U C T I O N M A N U A L SABER CARD v0 92...

Страница 2: ...tion are found Short Circuit PCBs have the traces drawn on this layer to help you follow the circuit Components The kit comes with a variety of components They make the circuit function Designing cir...

Страница 3: ...how and why the circuit works You can skip this bit and head straight to building your kit then check back later to learn how it works Or you can go head first into the how and why then start buildin...

Страница 4: ...d into a decade counter that turns each of it s outputs on sequentially This circuit can run on 3 16V By changing a resistor or capacitor s value the clock pulse can be increased or decreased When exp...

Страница 5: ...1uF Capacitor 2 x 4 7uF Capacitor 1 x Printed Circuit Board Soldering Iron Solder Flux 0 3 0 5mm Thin Tip 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 202 2...

Страница 6: ...uF Transparent with pen mark Black plastic strip White paper strip 1002 White paper strip 202 White paper strip 472 R4 20K White paper strip 2002 U1 U2 NE555 CD4017 In black plastic In black plastic 2...

Страница 7: ...CIRCUIT Circuit Component Layout D2 R4 U2 D1 R1 R2 C1 C2 R3 U1 D3 D4 D5 D6 D7 D8 D9 D10 D11...

Страница 8: ...ED8 LED9 LED10 U2 4017 Q0 CLK VDD VSS CKEN RESET Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 3 2 4 14 13 15 7 10 1 5 6 9 11 12 8 16 Cout R1 10K R2 10K C2 1uF C1 100nF LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8 LED9 LED10...

Страница 9: ...function Capacitors take time to fill up and empty A bypass capacitor provides a res ervoir that adds voltage when some is missing and absorbs some when extra is available R1 R2 and C2 The values of R...

Страница 10: ...outputs is connected to the anode of an LED as the output is held high when on Power Pads The 555 timer IC is rated for voltages between 4 5 and 16V The 4017 decade counter IC is rated for voltages be...

Страница 11: ...rightness and the longer the LED will last Only one resistor is needed for the entire strip of LEDs This is because our circuit is de signed to turn one LED on at a time If there were more than one LE...

Страница 12: ...nts and Integrated Circuits 5 SAFETY 350oC is obviously very hot Stuff catches fire at this temperature Skin fries Please be careful Remember to turn it off when you are finished This will prevent a p...

Страница 13: ...ASSEMBLY D2 R4 U2 D1 R1 R2 C1 C2 R3 U1 D3 D4 D5 D6 D7 D8 D9 D10 D11...

Страница 14: ...ating one pad and scraping the cap off when the heat has melted the solder on the other pad is a viable way to remove them with just a sol dering iron NE555 This is an 8 pin IC in an SOP package That...

Страница 15: ...ASSEMBLY D2 R4 U2 D1 R1 R2 C1 C2 R3 U1 D3 D4 D5 D6 D7 D8 D9 D10 D11...

Страница 16: ...kind If we have a short circuit some where on the board and we apply power you may destroy one of or both of the chips To check for shorts get your multimeter and put it in continuity mode Make sure...

Страница 17: ...a that can be found in datasheets to help you design circuits around them We have also outlined what happens when these components go pop and how to diagnose and replace them This information can be u...

Страница 18: ...side and positive on the other by an electric field In this case the dielectric material is ceramic A dielectric substance increases the amount of electrical energy that can be stored compared to non...

Страница 19: ...one needs a DC signal to power the device but records AC signals sound from the environment When we pass the AC noise through to an amplifier circuit we want the AC signal but not the DC Adding a capa...

Страница 20: ...voltage source and to deplete that store when the voltage source is removed This can be used to cre ate a time delay between turning on a volt age supply and a component receiving the voltage it needs...

Страница 21: ...ct on the output within the set timing interval This can be used to remove bounce from switches detect missing pulses capacitance mea suring etc Troubleshooting Like any IC checking for shorts between...

Страница 22: ...out GND Power Ground Trigger Output Reset Discharge Threshold Control Voltage 1 2 3 4 8 7 6 5 RESET TRIG OUT VCC DISCH THRES CONT Parameter Min Typ Max Operating temperature 0 C Supply Voltage VCC 4 5...

Страница 23: ...readboard Use a push button and pull down resistor connected to the clock pin and LEDs con nected to each output then power the chip and press the button If an LED doesn t light up and it isn t defect...

Страница 24: ...10 9 Q2 Q1 Q0 Q6 GND Q7 Q3 VCC RESET CLOCK CLOCK INHIBIT CARRY OUT Q9 Q4 Q8 Parameter Min Typ Max Operating temperature 55 C Supply Voltage VCC 3V Clock Input Frequency 5V 15V Quiescent Current 0 04 A...

Страница 25: ...ng to spec If the polarity is correct the voltage is sufficient the series resistor is the correct value and it doesn t light up it s most probably toast Here s how to calculate the value for the seri...

Страница 26: ...s you exceed the resistors power rating it s going to get hot Fortunately they are cheap and easy to replace and easy to troubleshoot Keep in mind that resis tance cannot be measured in an operating c...

Страница 27: ...6 07 08 09 10 11 12 13 14 15 16 Value 100 102 105 107 110 113 115 118 121 124 127 130 133 137 140 143 Code 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Value 147 150 154 158 162 165 169 174 178 182...

Страница 28: ...wing diagram to work out the re sistors value 4 Bands 5 Bands 6 Bands 22 1 220 1 220 1 100ppm 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 1 10 0 01 0 1 100 1K 10K 100 50 15 25 100K 1M 10M...

Страница 29: ...omponents the current flowing through a circuit the supply volt age and the resistance across a compo nent although some components like an LED do not have a fixed resistance value This can be useful...

Страница 30: ...ng as your own and think you deserve a mention please feel free to contact admin shortcircuits cc and let Martyn know 2021 Short Circuits Some Rights Reserved What is allowed All circuits and schemati...

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