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A latching circuit is a circuit with two stable states, which one can think of as 1 and 0, thereby being able to store one bit of information. In circuit diagrams, these are represented by cross-coupled NOR or NAND logic gates.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoCircuit latching is a way to control circuits in electricity. When the latch is open all circuits have electrical current and when closed there will be no current.
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Define latching current in scr?
Latching Current is the minimum current needed on the gate to fire or trigger an SCR.
Why thyristor is called latching device?
once the gate has triggered conduction between cathode and anode, the gate has no further control; conduction will continue until power is removed from the cathode to anode circuit.
How do you calculate holding current of scr when latching current is given?
we know that ratio of holding current to latching current in scr is 0.4.
What is the meaning of stop latching?
Stop hanging on
What is the ratio of latching current to holding current?
Latching current is the current flowing between anode to Cathode when thyristor is turned on using gate pulse. If the gate pulse is removed before the required min amount of latching current value is not reached thyristor will turn off. To keep the thyristor in on state the gate pulse duration should be so adjusted that the min latching current value is reached before it ends.
How latching current is different from holding current?
Latching current is the minimum amount of current required to maintain the thyristor in on-state immediately after a thyristor is turned on..and Holding current is a minimum current that is required to maintain the thyristor in on-state not allowing it to turn off.Alternative AnswerIf you are referring to a relay or contactor, when the relay is de-energised, there is a break in the magnetic circuit, so the magnetic circuit has an airgap which makes it have a high reluctance. When the relay is energised, the magnetic circuit causes the armature to close, removing the airgap and reducing the value of reluctance. So, when you first energise the relay, there must be a greater magnetomotive to overcome the higher reluctance. When the relay is closed, a lower magnetomotive force will be sufficient to overcome the lower reluctance and maintain the relay closed.
What should I do if the car door will not remain closed?
repair or adjust the latching mechanism
How do you repair ext cab door latching?
ford motor co. had a recall on this problem
Does the ratio of latching current to holding current depends upon gate current?
yes
What is a holding relay?
Latching relays have no default position and remain in their last position when the drive current stops.
Why latching current is more than holding current in thyristor?
Holding current is a kind of Imin i.e., a minimum rating current which should not be decreased less than this limit so that SCR will be off(Maximum limit).Whereas latching current is again a limit which is Imini.e., a minimum current that should be there to make it on(Minimum limit).So obviously Holding current is more than latching current.If u still have the confusion go through the link below ALi RAZA
How would you use parasitism in a sentence?
E.g. "This form of parasitism involves latching onto the host, and drawing/ingesting its blood"
