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Infineon D2 PAK Скачать руководство пользователя страница 16

User Guide

16

Revision 1.0

2018-03-01

Full-bridge converter for UPS
D

2

PAK/ D

2

PAK-7 kit

UG_1801_PL16_1802_225559

Figure 16 Front thermal image after 1 hour with 500 W

Figure 17

Back thermal image after 1 hour with 500 W

B: 49

°

C

55

°

C

C: 64

°

C

78

°

C

(resistor)

60

°

C

(top)

62

°

C

(bottom)

A: 49

°

C

Содержание D2 PAK

Страница 1: ...on low RDS on MOSFETs the demo board can help reduce system cost and time to market Intended audience This document addresses the market for UPS manufacturers with the goal of providing a high perform...

Страница 2: ...Full bridge converter demo board 120 mm 120 mm The demo board needs two power supplies to provide an input voltage and a bias voltage The voltages of both power supplies are typically 12 V which can...

Страница 3: ...D2 D2 7 pin kit for MOSFETs Separate Vin and bias voltages 12 V is used in this user guide 600 V gate driver IC with 4 A peak drive current IRS2186 Current Sense CS information A heatsink can be mount...

Страница 4: ...material both layers are 2 oz copper with a board thickness of 62 mils 1 58 mm C1 2700uFx50V C6 47 uF 35V C8 0 1uF 50V C7 0 1uF 50V D1 1 2 D2 1 2 D3 1 2 D4 1 2 C4 47 uF 50V D5 1 2 U2 IRS2186SPBF Vb 8...

Страница 5: ...User Guide 5 Revision 1 0 2018 03 01 Full bridge converter for UPS D2 PAK D2 PAK 7 kit UG_1801_PL16_1802_225559 Top Bottom Figure 4 PCB top and bottom layers...

Страница 6: ...be set high enough that the reset of the transformer is completed A shorter dead time increases total turn on time which may saturate the transformer A value of 0 9 ms was selected to do the tests Bot...

Страница 7: ...thermal image after 1 hr Comparing the temperature readings at points A and B between the front and back sides at the corner in Figures 6 and 7 shows that they are the same Case temperatures of the MO...

Страница 8: ...bout 13 W The reset time for the transformer is about 20 s as shown in Figure 9 which is much less than the dead time of 700 s The MOSFET turn off waveforms are shown in Figure 10 Since Ids was measur...

Страница 9: ...d time t1 t2 Figure 10 Turn off waveforms C1 Vout1 Vout2 5 V div C2 IIoad 0 5 A div C3 Vds3 5 V div C4 Vds4 5 V div 20 s reset C1 Itr 20 A div C2 Ids_Q1 10 A div C4 Vds_Q1 5 V div 27V C21 0 27 V I21 2...

Страница 10: ...t indicates that the heatsink placed at the front is slightly more effective Its average efficiency is 96 4 percent shown in Table 2 which is 0 1 percent lower than that shown in Table 1 with the heat...

Страница 11: ...rent for the transformer is 39 2 A Therefore the conduction power loss for each MOSFET can be estimated as 39 22 0 72 2 0 55 W which is much higher than the switching loss of 15 mW shown in Figure 11...

Страница 12: ...User Guide 12 Revision 1 0 2018 03 01 Full bridge converter for UPS D2 PAK D2 PAK 7 kit UG_1801_PL16_1802_225559 Figure 13 Transformer RMS current measurement 39 2 A C1 Itr 20 A div...

Страница 13: ...100 VM 300 MA 1N4148W 1N4148W 7 F Diodes Inc 5 2 D5 D6 Diode 100 V 2 A MURS 210T3 MURS 210T3 OnSemi 6 8 J2 J3 TP1 TP2 TP3 TP4 TP5 TP6 Test point 218 mils 90 mils BIAS 15 V 1502 2 Keystone 7 4 PRTN PO...

Страница 14: ...C the temperature reading is 7 C lower which shows that the source bond wires in the D2 7 pin package result in lower power dissipation This is consistent with the higher efficiencies shown in Table 4...

Страница 15: ...both case temperature readings at the resistor 78 C and PCB location A 49 C are higher than those 64 C and 44 C with same parts at 420 W in Figure 15 and also higher than the 69 C and 46 C with D2 at...

Страница 16: ...ll bridge converter for UPS D2 PAK D2 PAK 7 kit UG_1801_PL16_1802_225559 Figure 16 Front thermal image after 1 hour with 500 W Figure 17 Back thermal image after 1 hour with 500 W B 49 C 55 C C 64 C 7...

Страница 17: ...those 43 C and 45 C shown in Figure 6 due to the additional 80 W of load With the same load at 500 W the temperature reading 52 C at A shown in Figure 19 is higher than that 49 C in Figure 17 while t...

Страница 18: ...ull bridge converter for UPS D2 PAK D2 PAK 7 kit UG_1801_PL16_1802_225559 Figure 18 Front thermal image after 1 hour Figure 19 Back thermal image after 1 hour 20 0 C 80 0 C 20 40 60 80 20 0 C 80 0 C 2...

Страница 19: ...Guide 19 Revision 1 0 2018 03 01 Full bridge converter for UPS D2 PAK D2 PAK 7 kit UG_1801_PL16_1802_225559 Revision history Major changes since the last revision Page or reference Description of cha...

Страница 20: ...ation note must verify any function and other technical information given herein in the real application Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind inclu...

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