PI2002-EVAL1 Datasheet, PDF (4/11 Pages) Vicor Corporation – PI2002-EVAL1 Active ORing With Load Disconnect

Reference Designator
C1, C5
C9
C3, C4, C7, C8
C2, C6
D1, D2
J5, J6
Q1, Q2, Q3, Q4
R1, R12
R2, R13
R11, R22
R10, R21
R3, R14
R4, R15
R7, R14
U1, U2
Value
1 µF
22 µF
Not installed
18 nF
LED
Jumper
N-MOSFET
8.45 KΩ
13.3 KΩ
10 Ω
4.99 KΩ
2.00 KΩ
2.00 KΩ
Not Installed
PI2002
Table 4 – Component functional description
Functional Description
VC Bypass Capacitor
Output (Load) Capacitor
Snubber to reduce voltage ringing when the device turns off
OCT off timer Capacitor
To indicate a fault exist when it is on
SCD to select for Gate high charge current or Gate low charge current
ORing Main Switch
UV Voltage Divider Resistor ( R2UV in Figure 4)
OV Voltage Divider Resistor ( R2OV in Figure 4)
VC Bias resistor
LED Current Limiter
UV Voltage Divider Resistor ( R1UV in Figure 4)
OV Coltage Divider Resistor ( R1OV in Figure 4)
SCD Ground connecting Resistor
Picor Active ORing with Load Disconnect Controller
Initial Test Set Up
To test the PI2002-EVAL1 evaluation board it is necessary to
configure the jumpers (J5 and J6) 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 - 30 A minimum.
1.4 Digital Multimeter
1.5 Oscilloscope.
1.6 Appropriately sized interconnect cables.
1.7 Safety glasses.
1.8 PI2002 Product Data sheet.
Figure 3 – Layout configuration for a typical redundant power application, OCD configured for fast gate turn on.
Picor Corporation • www.picorpower.com
PI2002-EVAL1 User Guide Rev 1.0 Page 4 of 11