Contents
Why clock pulse is used in flip-flop?
Flip-flops can be either simple (transparent or asynchronous) or clocked (synchronous). Clocking causes the flip-flop either to change or to retain its output signal based upon the values of the input signals at the transition. Some flip-flops change output on the rising edge of the clock, others on the falling edge.
What is clock pulse transition?
A Pulse transition detector is used in flip flops in order to achieve edge triggering in the circuit. It merely converts the clock signal’s rising edge to a very narrow pulse. The PTD consists of a delay gate (which delays the clock signal) and the clock signal itself passed through a NAND gate and then inverted.
Can a flip flop be used without a pulse detector?
You could achieve this without the pulse detector circuit by replacing the D Latch with a D flip flop (which is edge triggered). A D Flip Flop can be constructed from two D Latches and a NOT gate as shown here (I can embed the image because the file format isn’t supported)
Why does my flipflop pulse detector go high?
The output will go high as soon as a rising edge is detected on the D input. The output is cleared on the next rising clock edge. May be the delay generated by three not gates is less than the set up time. So you might want to check with some more odd number of not gates and this also explains why your circuit worked with an inductor
What is a positive edge triggered D flip flop?
Positive Edge Triggered D flip flop It consists of a gated D latch and a positive edge detector circuit. As shown in the truth table below, the circuit output responds to the D input only at the positive edges of the clock pulse.
Where does D flip flop get the data from?
As we are seeing in the figure, Master D flip flop gets the data from D input on the leading edge of the clock pulse (signal going from Low to High). Therefore, the master is ‘ON’ now. Similarly, on the trailing edge of the clock pulse (signal from High to Low), the slave flip flop loads data, i.e., the slave gets ‘ON’.