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Application of dual-channel DC power supply in parallel mode (PARALLEL)

Nov 10, 2023

Application of dual-channel DC power supply in parallel mode (PARALLEL)

 

Press the left and right switch buttons to enter parallel mode. In parallel mode, CH1 and CH2 are short-circuited inside the power supply, and CH1 and CH2 are short-circuited inside the power supply to achieve parallel output of the two power supplies. This mode is mainly used in scenarios that require 3A~6A current driving capability.


At this time, both the output voltage and current limit depend on the settings of the main channel (CH1). CH1 and CH2 are the positive poles of the power supply. The voltage between the negative poles of the power supply of CH1 and CH2 is equal to the set voltage value of the main channel (CH1). The maximum output current is equal to twice the current limit value set by the main channel (CH1). Adjusting the voltage and current knobs of the SLAVE (CH2) channel does not work.


It is worth noting:
1. Before connecting the DC power supply to the test circuit, be sure to confirm the output voltage under no-load conditions! Before connecting the circuit to the circuit, you must confirm the correct output voltage.


2. Current limiting can protect the circuit. Proper current limiting can prevent components in the circuit from burning out due to excessive current. For convenience, remember not to set the current limit arbitrarily. During circuit testing, attention should be paid to the status of the AC/AC indicator light. If it changes from green to red, the power supply should be cut off immediately to check whether the current limit setting is wrong or whether the circuit is wrong.


3. When adjusting voltage and current, if the value cannot rise, do not blindly adjust the knob and check the status of the AC/AC indicator light.

 

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