阅读说明：本技术 电力电子设备和用于向功率半导体开关的驱动电路供应电压的方法 (Power electronic device and method for supplying voltage to a drive circuit of a power semiconductor switch ) 是由 B·穆勒 于 2020-02-03 设计创作，主要内容包括：本发明涉及一种电力电子设备(1a),具有第一功率半导体开关(6a)和驱动电路(49、49a、49b)。利用该电力电子设备能够向适用于至少一种操作模式的驱动电路供应电压。为此,包括辅助电路装置(52、52a、52b),该辅助电路装置具有供电电容器(53、53a、53b)和辅助电容器(54)、常关辅助半导体开关(55,55a、55b)、二极管(56)和自举二极管(57),其中辅助半导体开关(55、55a、55b)经由第一连接点(58)连接在第一功率半导体开关(6a)的参考电位端子(59)上,从该第一连接点(58)开始,二极管(56)、第二连接点(60)和辅助电容器(54)的串联电路与辅助半导体开关(55、55a、55b)并联布置,使得在辅助半导体开关(55、55a、55b)截止时,辅助电容器(54)通过流经第一功率半导体开关(6a)的电流充电,并且供电电容器(53、53a、53b)一方面经由自举二极管(57)与第二连接点(60)电连接,另一方面与参考电位端子(59)电连接,使得在辅助半导体开关(55、55a、55b)导通且辅助电容器(54)充电时,供电电容器(53、53a、53b)经由自举二极管(57)被辅助电容器(54)充电。(The invention relates to a power electronic device (1a) having a first power semiconductor switch (6a) and a driver circuit (49, 49a, 49 b). With which the electronic device is able to supply a voltage to a drive circuit adapted to at least one mode of operation. To this end, an auxiliary circuit arrangement (52, 52a, 52b) is included, which has a supply capacitor (53, 53a, 53b) and an auxiliary capacitor (54), a normally-off auxiliary semiconductor switch (55, 55a, 55b), a diode (56) and a bootstrap diode (57), wherein the auxiliary semiconductor switch (55, 55a, 55b) is connected via a first connection point (58) to a reference potential terminal (59) of the first power semiconductor switch (6a), starting from which first connection point (58) a series circuit of the diode (56), a second connection point (60) and the auxiliary capacitor (54) is arranged in parallel with the auxiliary semiconductor switch (55, 55a, 55b) in such a way that the auxiliary capacitor (54) is charged by a current flowing through the first power semiconductor switch (6a) when the auxiliary semiconductor switch (55, 55a, 55b) is switched off, the power supply capacitors (53, 53a, 53b) are electrically connected to the second connection point (60) via a bootstrap diode (57) and to a reference potential terminal (59), so that when the auxiliary semiconductor switches (55, 55a, 55b) are turned on and the auxiliary capacitor (54) is charged, the power supply capacitors (53, 53a, 53b) are charged by the auxiliary capacitor (54) via the bootstrap diode (57).)