Vicor Module and Power Supply Design & Selection Tools

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Designing a Battery Charger
Trim resistors for setting float voltage and charge current in battery chargers designed with BatMod modules
Nominal output voltage: 
Step 1:  Setting the Float Voltage
Open circuit float voltage:  V
Float voltage trim range:  V
Step 2:  Setting the Charge Current

Output current trim range: A
Desired float voltage:   V     Desired output current:   A    

Trim resistor value: K ohm

Trim resistor value: K ohm

B: Battery
R1: Sets zener bias current
R2: Sets charge current
K ohm
Ru Rd: Sets float voltage
K ohm