Thursday, June 8, 2017

Circuit Diagram Bistable Latch using LM555 IC

Robotronicdiagram. - This is one of the 555 IC circuit implementation to build bistable latch look like shown in Figure 1. In this circuit diagram that 555 IC be used to build this bistable latch that supported with other component like capacitors, resistors, and LED for indicator.

Beside we will give you circuit diagram of bistable latch using 555 IC, we also will give you component parts, and the description of this circuit diagram. 

Circuit Diagram 

Component Part
  1. Battery
  2. Capacitors
  3. Resistors
  4. Switchs
  5. LED

Circuit diagram like in figure 1 above is Circuit Diagram Bistable Latch using LM555 IC. According Circuitstoday site describe that the RS Latch in the 555 Timer can be used with the Reset and Trigger inputs. The output is set or reset with the momentary inputs applied at these inputs. As the S and R inputs are controlled by the outputs of the Op-Amps with trigger and threshold inputs; under the normally open state of the switches the outputs of Op-Amp are such that R, S inputs are 0,0 i.e., LOW state for which, the output of the RS Latch remains in the previous state.

the above circuit is a Bi-Stable latch using Trigger and Threshold inputs of 555 Timer. The output of UC (Upper Comparator) which is Reset input to RS Latch is High when the Threshold input is High or Greater than 2/3 Vcc, so it is Pulled Down. When the Reset input is high with Low Set input to the latch, the output is Reset i.e., Low. The output of LC(Lower Comparator) which is Set input to RS Latch is High when the Trigger input is Low or Lesser than 1/3 Vcc, so it is Pulled High. When the Set input is high with Low Reset input, the output is set, i.e., High.

Please read more this article from original source about Circuit Diagram Bistable Latch using LM555 IC using link Here.

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