GNB3—1.0A型逆变器目前大量应用于客车上,其稳压电源部分为带有降压电阻的串联三极管式稳压电源电路,电路较复杂,检修较困难。我们参考了西安信号工厂生产的TBN—1型逆变器,改用稳压管稳压电路,如图1及图2,既简化了电路、降低了成本,又有利于检修。经实验室试验及现车试验,当输入电压在47～60伏范围内变化 GNB3-1.0A inverter is currently used in a large number of buses, the power supply part of the regulator with a step-down transistor series transistor power supply circuit, the circuit is more complex, more difficult maintenance. We refer to the Xi’an signal factory production TBN-1 inverter, Ze tube regulator circuit switch, as shown in Figure 1 and Figure 2, not only simplifies the circuit, reducing costs, but also conducive to maintenance. After laboratory tests and car tests, when the input voltage changes in the range of 47 ~ 60 volts