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What is NCP1337 PWM Current Mode Controller For Free Running Quasi Resonant Operation about?

NCP1337 combines a true current mode modulator and a demagnetization detector which ensures full Borderline / critical mode in any load / line conditions. The frequency is internally limited to 130 kHz, preventing the controller to operate above the 150 kHz CISPR-22 EMI starting limit. As each restart is softened by an internal 4. Ms soft-start, no audible noise can be heard.

Author

corrales_86

Language

EN