Vicor PI2001-EVAL1 Active ORing Evaluation Board - Manual (Page 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 K Ω UV Voltage Divider Resistor ( R2UV in Figure 4)
R2, R9 13.3 K Ω OV Voltage Divider Resistor ( R2OV in Figure 4)
R3, R10 10 Ω VC Bias resistor
R4, R11 4.99 K Ω LED Current Limiter
R5, R6 2.00 K Ω 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