Peak current detection circuit and power transforming apparatus

• Main Author: LI MAOXU
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The utility model discloses a peak current detection circuit for power transforming apparatus includes: first switch, peak value electric capacity and second switch series connection are between the node and earthing terminal between first power switch pipe and the second power switch pipe, the third switch is connected between peak value electric capacity and output capacitance, the voltage signal at peak value electric capacity both ends is peak value voltage signal, the comparator includes first input end and second input and output, and wherein, the first input end is used for receiving reference voltage, second input and peak value capacitance connection, and the output is used for exporting the peak current detection signal. The utility model provides a power transforming apparatus is through peak value electric capacity and firstly switch on and turn -off the peak voltage who acquires the inductance both ends to the third switch to with this peak voltage and reference voltage through relatively generat