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reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.

reason：This ripple is the output ripple of the power supply.

answer：In practical applications, there must be a certain filter circuit between the two-stage power supply, please refer to our technical manual. First confirm the working frequency of the power supply and clarify whether the interference source is a pre-level power supply or a post-level power supply module.