Magnetics Work Authorization

DESIGN PHASE:       paper design
SUB ELEMENT NAME:   magnetics work authorization total
VARIABLE NAME:      [HM]
DATE:               REVISION LETTER:     REVISION DATE: 
APPLICABILITY:      [MAGNETIC COUNT] > 0

ACTIVITY:  Work Authorization to Magnetics Design Group for:

     Develop Designs (Average of 3 iterations)
     Fabricate Core and Coils (Average of 6 per design)
     Provide Program Direction
     Prepare transformer drawings
     Prepare transformer test specs
     Incorporate changes
     Check drawings
     Release drawings and specs
     Order prototype parts
     Order prototype tooling
     Fabricate prototype parts (Average of 6 parts)
     Engineering factory support

INPUT:  Report specifying magnetics requirments. 

OUTPUT: Core and coil magnetics for breadboard (up to six)
        Released drawings and specs for prototype magnetics 
        and make prototypes (up to six)

ALGORITHM:

[HM] =               magnetics work authorization total
0*                   hours per magnetic *
[MAGNETIC COUNT]     number of magnetic components in circuit

DISCUSSION:

(Source material for estimating cost of in-house or 
vendor magnetics design and prototype fabrication.)

Author: Jerrold Foutz, foutz@smpstech.com

Original: Foutz, J., Power Supply Circuit Development Estimating Aid - An Expert System Application, IEEE Applied Power Electronics Conference Record, New Orleans, February 1-5, 1988. Revised 26 February 2001