alarm clock using jk flip flops multisim

To reduce input impedance lower and connects resistors of 22 MΩ to ground.įor J, K, and CK do not use to short circuit to ground. See the Pin R and S will connect to 2 metal plates(touch plate ON and OFF). But We just use JK-Flip-Flops type as RS-Flip-Flops only. Because not enough inductance, the circuit may not work. In this experiment, we should not use a general battery as the power supply. Which we are using it as the RS-Flip-Flop circuit. This results in the JK-Flip-flops of CMOS works. It causes an inductance as high states or logic “1”. The main principle of the touch switch is we will be using a special feature of CMOS that has very high input resistance. We will use the JK-FF of CMOS type, is MC14027 as before. Recommended: 8 simple touch switch circuit projects Just, use your finger to touch them only also can turn ON-OFF circuit. We will experiment with the Digital touch switch circuit using JK-flip-flop as RS-flip flop. Morning sun alarm circuit using IC-4011.We should connected input with Vpp or Vss, do not leave it idle floating strictly prohibited. In the experiment using the JK-FF only one, another (IC1/2) not use. It shows that it has pulse into the flip-flop and change state. Then, Whisk hand through the beam of a flashlight. Secondly, shine a flashlight to the phototransistor. If Q = “1” will hear the relay “click” indicating the coil pull the contact. The flip-flops may set or reset (Q = “1” or “0”) indefinitely. This figure is a photo of connecting the components on the Perforated PCB board to use in the experiment.įirstly, we turn on a power supply switch. We should install fuse protection for safety. So we must carefully make electrical wiring in this position. How does NE555 timer circuit works | Datasheet | Pinout.Simple 12V | 9V | 6V Motor DC Speed Control with PWM mode.Sound Activated Switch Circuit with PCB.Next, the contact of the relay will turn on-off a load that is the 220-volts AC circuit. The 1N4007-diode will protect the other semiconductor devices in this circuit from the surge voltage in the coil of a relay. Because this section has flowing current more than 100 mA. Then, connect the wire to both the collector of transistors-Q2 – BC337, and the positive of power supply to the coil of the relay, should not use too small. Should connect near outside the breadboard of PCB better. Because of the large lead of relay and AC-220 volts parts on it. We should not connect the relay on the breadboard directly. You have to change the power supply and the value of other components such as resistors. If you want to use the resistance of the coil more than 100 ohms or lower coil voltage. The relay should have a coil voltage of 12-volts in a single contact type. Then, we use the variable resistor – VR-50 K ohms to adjust the sensitivity of the light.

Alarm clock using jk flip flops multisim