My Light Diagram

Advantages and Disadvantages of Push Pull Amplifier Advantages: 1.        Even harmonics are absent in the output. 2.        The problem of core saturation and non-linear distortions will not appear because of cancellation of D.C. components of collector current. 3.        The output is double as that offered by a single ended stage. 4.        The effect of ripple voltage of the power supply due to inadequate filtering are balanced out because of flow of ripple current in opposite direction in the primary of the output transformer. Disadvantages: 1.        Two transistors have to be used. 2.        It requires two equal and opposite voltages at the input. Therefore push pull circuit requires the use of driver stage to furnish these signals. 3.        If the parameter of the two tr...

This circuit will remove the transient spikes and contact bounces from a non-latching push button switch. Push Button Switch De-Bouncer Circuit Diagram : Notes: Using a 555 timer as a monostable circuit, it is easy to build a good switch debouncer circuit. There are many circuits for SPDT debouncing, but not many for a normally open, push-to-make press button switch (PBS). The 555 monostable gives an output pulse of around 20 msec with component values shown. The formula for determining the output pulse is: t out = 1.1 R 1 C 1 With the values in my circuit this equates to: t out = 1.1 x 1.8x10 6 x 10x10 -9 = 0.0198 sec or 19.8ms The 555 circuit can be re-triggered if the input is held low longer than the output pulse. To prevent this happening, I have included a further timing circuit comprised of the 1Meg resistor and 47n capacitor. Normally, the 47n capacitor is discharged via the 1 Meg resistor. When the switch is pressed the capacitor quickly charges and provides a b...

This is  Interview question that every PLC programmer came across in his carrier.The Question is very tricky and shows the fundamentals (basic Ladder Laws) and depth of candidates knowledge. Today we are going to discuss PLC program for Push to ON device  and Push to Off Device.But the trick is that we have to use  only Normally open(NO) ,Normally Close (NC) contacts ,and Coil as output only(No timer,Counter, OSR ). In short there will be a single Push Button Input (X0) , and one Output (Y0). When user press Push button for 1st time output will be ON ,when user Presses Push Button for 2nd time output will be OFF. This is also called as "Push to On Push to Off " logic.Analogy can be provided with "TV" on and off Push Button.    We Can Break Sequence Like This : 1) Push Button Pressed (X0) ==> Output (Y0)On 2)Push Button Released (X0)==> Output (Y0) Latched 3)Push Button Pressed (X0)==> Output (Y0 )Off 4)Push Button Released (X0)==> Output (Y0) O...

This amplifier circuit is very popular audio power amplifier circuit type. We call it a complementary since the final transistors is an NPN-PNP pair, each with the same characteristics. This circuit produce an AB class amplifier, since each transistor works in slightly more than half cycle of the signal. There is overlap area when both transistor conduct a current, and this area will be around its stationary current (when the input signal is zero). This circuit is also known as push-pull amplifier circuit since each transistor in the pair is working alternatively. Here is the schematic diagram of the circuit:  Complementary (Push-Pull) Power Amplifier Circuit Diagram If you liked this article,Take a few Seconds to Share this and leave comments