PULSE Pvt. Ltd.
Chokes
PMPE develops and manufactures customized chokes and inductors for all applications.

Below are some of the important types and applications shown briefly:
Storage Choke:
Direct current flows through the choke, with delta-shaped alternating current superposed. The frequency of this alternating current can be twice the switching frequency, depending on the topology of the Switched Mode Power Supply.
Resonant Circuit Choke:
An alternating current of same frequency as that of the switching frequency flows in these inductors.
Pulse Choke:
High current flows in a short time through the choke, depending upon the duty cycle of the operating frequency. For rest of the time the choke is in de-energised condition.
PFC Choke:
In these chokes the current flowing is up to twice the frequency of mains supply in-put. In addition a high-frequency alternating current is super imposed on it.
Non Linear Chokes:

The inductance curve of these chokes depends upon the amount of current flowing through it. These are stepped air gap or transducer choke.
Chokes for EMI/EMC Application:

These chokes are used at the input of a SMPS to filter common and differential mode noise generated due to switching circuits of the power supply.
             


Tuned Circuit Inductors:

These chokes are used in a series or parallel tuned circuit to select a frequency for further processing.

The core materials normally used are:
  •  Soft Ferrite
  •  Iron Powder
  •  Carbonyl Iron Powder
  •  MPP
  •  Koo Mµ, MSS
  •  Silicon Iron
  •  Nickel Iron
  •  Amorphous Cores
  •  Nanocrystalline Cores
Conductor Used:
  •  Solid Copper wires with round and rectangular shapes
  •  Litz Wires Copper ( In house facility to manufacture)
  •  Copper Foil Strips
Designs:
  •  Bobbin core windings
  •  Toroidal core winding
  •  Lead frame winding(Planner cores)
  •  Air Coils
  •  Drum Core windings
  •  Ferrite Rod windings
  •  Ferrite bead windings
  • Edge Winding
      

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