Holding current - thyristor , Electrical Engineering

Assignment Help:

Holding current

The holding  current is  the value  of on state  current  required  to maintain  conduction once the  device  the device has  fully timed  on and  the  gate current  has been removed. The  on state  current  must have  previously  exceeded the  latching current  Ti. To  turn  off A thyristor  the load current  must remain   below  Iii for sufficient time to tallow a return to the off state. This condition must be met  at the  highest operating junction temperature. Therefore it is the  minimum value of  anode current below which it must fall for taming off the thyristor. It  may also  define as the minimum anode current that must  be following  to keep  the device in a regenerative on state  condition. Below this holding  current  value the device  will return  to a blocking  state of  condition.


Related Discussions:- Holding current - thyristor

Energy conservation, Energy Conservation Our country has a vast poten...

Energy Conservation Our country has a vast potential of energy saving. It is estimated in which measures for energy conservation and improving energy efficiency have the pote

Transistor, can you differentiate the alpha,beta and gamma

can you differentiate the alpha,beta and gamma

Obtain an expression for the closed-loop transfer function, Q. A noninverti...

Q. A noninverting op-amp circuit and its closed-loop representation are given in Figure. Obtain an expression for the closed-loop transfer function H(ω) = Y (ω)/X(ω) and comment on

Discuss classification of conducting materials, Discuss classification of c...

Discuss classification of conducting materials into low resistivity and high resistivity materials. Conducting materials are categorized as low resistivity materials and high r

Calculating the damping ratio of the system, Consider the following mechani...

Consider the following mechanical system: a) Write a differential equation that describes the motion for this system. b) Take the Laplace transform of this equation and

Dc machines, explain dynamically induced emf and derive expression for it

explain dynamically induced emf and derive expression for it

3 phase 4 wire meters, 3 Phase 4 Wire Meters 3-phase 4 wire meters (10...

3 Phase 4 Wire Meters 3-phase 4 wire meters (10/20, 20/50 A) are used for agricultural and industrial consumers. For loads up to 50 A, the meters are directly linked to the su

Describe the memory allocation schemes in an embedded system, a. Describe t...

a. Describe the memory allocation schemes in an embedded system. Also give a short-note on extended memory. (6) b. Consider a byte - addressable computer with 16 - bit addresses

Show limitations of microprocessor-based control systems, Q. Show limitatio...

Q. Show limitations of microprocessor-based control systems? Practical limitations of microprocessor-based control systems stem from the following considerations: • Finite-w

Bi directional buffer 74ls245 , Bi Directional Buffer 74LS245 This types...

Bi Directional Buffer 74LS245 This types  of bi directional  buffer is required for data  bus as it has  to function as bi directional bus. The logic  diagram  of such  buffer i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd