| 摘要 |
SWITCH MODE POWER SUPPLY MODULE AND ASSOCIATED HICCUP CONTROL METHOD 5 Method and device for controlling the switching operation in a switch mode power supply module, said switch mode power supply module being intended to supply power to an item of equipment via the intermediary of two conductors, the method comprising the steps of measuring, in the switch mode power supply module, the load current 10 and comparing the measured load current with a predefined load current threshold value, and, cyclically interrupting the switching operation if the measured load current inside the device is less than the predefined load current threshold value. 15 Fig. 2 3. Mains 4. Power cord cord 1. Switch mode power 2. Powered supply equipment module Fig. 1 100. Mains 101. 102. 103. cord Protection Mains Primary connector and filter rectification capacitor 104. 105. i107. Output 108. Power Transforme Rectc 106. Filter current cord Transformer Rectification measurement connector 117. Power switch 112. Duty cycle 111. Anti- 110. 109. Current generator transient filter Comparator reference 118. Auxiliary power supply 116. PWM 115, 114. Error 113.Feedback control circuit Optocoupler amplifier Fig. 2 |
