英语翻译1.\x05电源变压器 采用降压变压器,将电网交流电压 220V 变换成需要的交流电压.此交流电压经过整流后,可获得电子设备所需要的直流电压.2.整流电路 本设计的大滤波电容,使得本电源

英语翻译1.\x05电源变压器 采用降压变压器,将电网交流电压 220V 变换成需要的交流电压.此交流电压经过整流后,可获得电子设备所需要的直流电压.2.整流电路 本设计的大滤波电容,使得本电源
英语翻译
1.\x05电源变压器 采用降压变压器,将电网交流电压 220V 变换成需要的交流电压.此交流电压经过整流后,可获得电子设备所需要的直流电压.
2.整流电路 本设计的大滤波电容,使得本电源的瞬时大电流的供电特性好、噪声小、反应速度快、输出纹波小.
3.滤波电路 采用电容滤波电路,将整流电路输出的脉动成分大部分滤除,得到比较平滑的直流电.本电路采用 3300μF/100V 的大电容 C3、C4 使输出电压更加平滑,电源瞬间特性好,适合带感性负载.
4.稳压电路 由 LM317 输出正电源,LM337 输出负电源.LM317 和 LM337 均使用了内部热过载,包含过流保护、热关断和安全工作区补偿等完善的保护电路,使得电源可以省去保险丝等易损耗器件.
调节电路:为适应不同应用场合的需要而将电压设置为可调.输出电压的计算 Uo=1.25×(1+Rf/R),可调电阻选用精密可调电阻,保证输出电压的精确可调.
5.保护电路 因为线性电源发热量较大,所以本电源中加了足够的散热器.由于采用高性能的集成电路,从而简化了电路的结构,突出了电源变换问题中的关键部分.通过调试与检测,电路整体性能良好.本电源不仅可以单独使用,还可以置于其他电子设备中用作稳压或稳流源使用.
关键词：直流电源 整流电路 滤波电路 稳压电路 保护电路

英语翻译1.\x05电源变压器 采用降压变压器,将电网交流电压 220V 变换成需要的交流电压.此交流电压经过整流后,可获得电子设备所需要的直流电压.2.整流电路 本设计的大滤波电容,使得本电源
1 Power transformer USES a step-down transformer, the power grid voltage 220 V transform into need ac voltage. The ac voltage after rectification, can obtain electronic equipment need dc voltage.
2The design of the rectifier circuit big filter capacitance, so the power of the instantaneous large current power supply features, little noise and reaction speed, output ripple small.
3The filter circuit capactance filtering circuit, will the pulsation of the rectifier circuit output filter out most of the ingredients from a smooth direct current. This circuit adopts the 3300 u F / 100 V large capacitance C3, C4 output voltage more smooth, the power supply characteristics moment, suitable for take perceptual load
4By LM317 output voltage circuit is power, LM337 output negative supply. LM317 and LM337 are used internal thermal overload, contains over current protection, hot off and safety working area compensation of perfect protection circuit, makes the power supply can save the fuse, and so easy loss device.
Regulating circuit: to meet the needs of the different application situation and the voltage is set to can be adjusted. Output voltage calculation Uo = 1.25 by (1 + Rf/R), can choose precision resistor adjustable resistance, guarantee the precise output voltage can be adjusted.
5The protection circuit for linear power supply heat bigger, so the power to add enough radiator. Due to the high performance integrated circuits, which can simplify the circuit structure, highlight the power transformation of the key part of the problem. Through the commissioning and testing, circuit performance is good. The power not only can be used alone, also can be in other electronic equipment used in voltage or current stabilization source use
Keywords: dc power rectifier circuit voltage filter circuit circuit protection circuit