Agilent Technologies 6629A, 6626A, 6628A Power Supply Protection Considerations, Battery Charging

Figure 4-8. External Trigger Circuit

Figure 4-9. Equivalent Internal OV Trigger Circuit

Power Supply Protection Considerations

Battery Charging

If you are using your supply in a battery charging application, it is recommended that a series protection diode be added to prevent damage to the supply during an overvoltage shutdown. Remember that each output has an overvoltage protection circuit that fires a crowbar to disable the output for any of the OVERVOLTAGE conditions described on page 48.

Figure 4-10 illustrates the recommended connections and protection circuit for a battery charging application. The diode will prevent damage to your supply that can result from excessive battery current flowing into the supply’s output in the event of an overvoltage shutdown.

Output Connections and Operating Information 55