ACT5101-1 データシートの表示（PDF） - Aeroflex Corporation

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ACT5101-1

HIGH VOLTAGE 3-PHASE BRUSHLESS DC MOTOR DRIVE

Aeroflex Corporation 

At stall only two elements will be on, and they will be on full time.

Pc = δS ⋅ δPWM ⋅ VCE ⋅ IC

Pc = 1 ⋅ 0.1 ⋅ 1.6 ⋅ 25

Pc = 4.0 W

δS = 1

δPWM = 0.1

VCE = 1.6 V

IC = 25 A

Ps

=

δS

⋅

[Eon

+

Eoff]

⋅

fo

⋅

-I--C--

40

Eon = 0.004 J

Eoff = 0.006 J

fo = 20000 Hz

Ps

=

1 ⋅ [0.004 + 0.006] ⋅ 20000 ⋅ 2---5--

40

Ps = 125 W

Pd = δs ⋅ [1 – δPWM] ⋅ Vf ⋅ If

Vf = 1.3 V

IF = 25 A

Pd = 1 ⋅ [1 – 0.1] ⋅ 1.3 ⋅ 25

Pd = 29.25 W

TjIGBT = [Pc + Ps ] ⋅ θjcIGBT + TC

θjcIGBT = 0.45°C/W

TC = 85° C

TjIGBT = [4 + 125] ⋅ 0.45° + 85°

TjIGBT = 143° C

Aeroflex Circuit Technology

10

SCD5101-1 REV D 5/14/01 Plainview NY (516) 694-6700

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