多功能电子仪表电源设计

Design of Power Supply for Multifunction Electronic Meter

设计了一种应用于多功能电子仪表的低噪声稳压电源电路,该电路通过AC-DC和DC-DC转换,实现了±3.3 V/±5 V/±12 V电压输出。通过测试结果表明,采用该电源控制电路组成的系统在提高电路性能的同时,可以有效提高系统的稳定性和抗噪性,具有输出电压精度高、输出纹波小、低噪声、安全可靠等特点。

This paper presents a multi-functional electronic instruments used in lownoise regulated power supply circuit.The circuit achieve the ±3.3 V/±5 V/±12 V voltage output through the AC-DC and DC-DC converter.Test results show that the power control circuit of the system while improving the circuit performance,can improve system stability and noise immunity,high precision output voltage,output ripple,low noise,safe and reliable.