Active voltage buffer and voltage converter

• Main Authors: DIALLO MAURO, MORROW MARK, DA CUNHA ALVES WILMA
• Format: Patent
• Language: Chinese; English
• Published: 25.08.2023
• 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; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

The active voltage buffer (108) includes: a ground terminal (BM) and input terminals (BE1, BE2); a buffer capacitor (C); buffer activation means (D1, D2) designed to connect the input terminals (BE1, BE2) to a second terminal (BC) of the buffer capacitor (C) to charge the buffer capacitor (C) via the second terminal (BC); a discharge switch (Q) for discharging the snubber capacitor (C); and a control circuit (110) for controlling the discharge switch (Q), which control circuit is designed to close the discharge switch (Q) in order to discharge the buffer capacitor (C) through the discharge switch (Q) via its second terminal (BC). The control circuit (110) is powered by the snubber capacitor (C) by being connected to a second terminal (BC) of the snubber capacitor (C) so as to receive current from the snubber capacitor (C). 该有源电压缓冲器(108)包括：接地端子(BM)和输入端子(BE1、BE2)；缓冲电容器(C)；缓冲激活装置(D1，D2)，其被设计成将输入端子(BE1，BE2)连接到缓冲电容器(C)的第二端子(BC)，以经由该第二端子(BC)对缓冲电容器(C)充电；放电开关(Q)，用于使缓冲电容器(C)放电；以及用于控制放电开关(Q)的控制电路(110)，该控制电路被设计成闭合放电开关(Q