What Size Pulse Plater do I Need?
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To size a pulse plater, the existing values from the DC Rectifier can be used or an estimate can be made with ohms law. 
Ohms law: E = IR 

• E is the voltage. 
• I is the current. 

• R is the resistance. {resistance is the load}

Voltage is what is available from pulse plater, typically 10 or 20 volts 
Current is the average current available from the pulse plater. 
Resistance represents the plating bath conductivity, lead lengths, connections, etc. 

If a plater is operating with DC and is running 20 amps @ 5 volts, your total resistance is: 
resistance = current / voltage = 20 amps / 5 volts = 0.25ohms 

This is a factor in selecting a pulse plater to insure adequate voltage at peak time not just the average as in DC plating. The duty cycle is also important in selecting the size of a pulse rectifier. For example: A 50% duty cycle requires a peak current of two times the average current. If you wish to plate 10 amps average, then a 20 amps peak setting is required. It also takes two times average voltage. 

If the duty cycle is 10%, a much greater ratio exists, 10 times. For a 10 amp average current, 100 amps peak is requires. It also takes about 10 times the average voltage to drive the 100 amps peak. The method Dynatronix uses, in its part number system DP20-30-100, gives you the information to select the unit. The numbers represent 20 volts maximum, 30 amps maximum average, 100 amp maximum peak pulse. Most manufacturers just list peak pulse value. 

    E-mail: sales@dynatronix.com