Vicor PI2001-EVAL1 Active ORing Evaluation Board Instrukcja Użytkownika Pobierz pdf (Strona 4)

Initial Test Set Up

To test the PI2001-EVAL1 evaluation board it is necessary to

configure the jumpers (J1, J2 and J3) first based on the

required board configuration.

Failure to configure the jumpers prior to the testing may

result in improper circuit behavior

Baseline Test Procedure (Refer to Figure 3)

1.0 Recommended Equipment

1.1 Two DC power supplies - 0-10 V; 25 A.

1.2 DC power supply 12 V; 100 mA.

1.3 DC electronic load - 50 A minimum.

1.4 Digital Multimeter

1.5 Oscilloscope.

1.6 Appropriately sized interconnect cables.

1.7 Safety glasses.

1.8 PI2001 Product Data sheet.

Figure 3 – Layout configuration for a typical redundant power application, using PI2001 with both solutions

configured in Master Mode.

Picor Corporation • www.picorpower.com P12001-EVAL1 User Guide Rev 1.1 Page 4 of 11

Reference Designator Value Functional Description

C1, C2 1 µF VC Bypass Capacitor

C3 22 µF Output (Load) Capacitor

C4, C5, C6, C7 Not installed Snubber to reduce voltage ringing when the device turns off

D1, D2 LED To indicate a fault exist when it is on

J1, J3 Jumper To select between Master and Slave Modes

J2 Jumper Connection between SL1 and SL2

Q1, Q2 N-MOSFET ORing Main Switch

R1, R8 8.45 KΩ UV Voltage Divider Resistor ( R2UV in Figure 4)

R2, R9 13.3 KΩ OV Voltage Divider Resistor ( R2OV in Figure 4)

R3, R10 10 Ω VC Bias resistor

R4, R11 4.99 KΩ LED Current Limiter

R5, R6 2.00 KΩ UV Voltage Divider Resistor ( R1UV in Figure 4)

R7, R14 Not Installed BK Delay Timer Programmable Resistor

U1, U2 PI2001 Universal Active ORing Controller

Table 4 – Component functional description

1 2 3 4 5 6 7 8 9 10 11

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Vicor PI2001-EVAL1 Active ORing Evaluation Board Instrukcja Użytkownika Strona 4