Power module and power supplier with same

Abstract

Provided are a power module and a power supplier with the same. The power module is used for receiving input electric energy from an external power source and accordingly transmitting the minimum output electric energy. The power module comprises a relative duty cycle control unit and a working time loss circuit, wherein the relative duty cycle control unit is used for receiving input electric energy and sets a relative duty cycle to a lower limit relative duty cycle so as to start to output original minimum output electric energy in a high potential mode at a starting working time within an operating cycle. The working time loss circuit is connected with the relative duty cycle control unit to receive the original minimum output electric energy and delay the starting working time, and accordingly the minimum output electric energy is output by utilizing a residual relative duty cycle less than the lower limit relative duty cycle. In addition, the invention further discloses a power supplier using the power module.

Description

technical field [0001] The invention relates to a power module, in particular to a power module with a working time loss circuit. Background technique [0002] see figure 1 , figure 1 It is a schematic diagram of a power module in the prior art. The power module 100 of the prior art includes a relative duty cycle (duty cycle) control unit 11, and the relative duty cycle control unit 11 is used to output an output electric energy by adjusting the relative duty cycle after receiving the input electric energy Vin from the external power supply, and The relative duty cycle control unit 11 currently on the market has a lower limit relative duty cycle when in use. In other words, the output electric energy has a minimum value. When the relative duty cycle control unit 11 adjusts the relative duty cycle to the lower limit relative duty During a period, the power module 100 outputs an original minimum output electric energy Va. [0003] In many fields, high voltage is often requ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of excessive minimum output electric energy, the prior art uses frequency reduction to reduce the original minimum output electric energy Va of each power module 100. However, in electronic products, the prevention of electromagnetic interference (Electromagnetic Interference; EMI) is mostly Designed for the noise of some frequencies, so when the frequency of the power supply is reduced, the effect of anti-electromagnetic interference will be reduced, which will affect the performance of electronic products

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