高功率电路英语怎么翻译

1. 求高手翻译（关于电气专业英语的）

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

2. 请专业朋友帮我把英文电路说明翻译成中文, 急!!!!!!!!!!!!

Circuit description
One, the transmitting circuit:
1, the system power: DC 3V
2: FORWARD, BACKWARD, press, RIGHT-WARD, LEFTWARD; respectively control forward and backward, turn right, turn left. Issued by the TX-2B remote control coding signal, the isolation circuit sends the oscillation frequency signal ( the isolation circuit is composed of a crystal, a triode, capacitors and other components ), amplified by the amplifying circuit and carrier, composed of a transmitting circuit and a transmitting antenna.
In two, receiving circuit:
1, the system power: DC 4.8V
By 2, the antenna and high-frequency oscillatory circuit receives consistent with the frequency control signal.
3, by IC RX-2B encoding, and control the corresponding components: decoding output amplification
When the decoding circuit of the received signals after decoding, if the forward signal, then the feet high level output, concts the triode transistor 945 945, by concting the drive system circuit transistor 772, 882 driving motors, it forward, other functions and so on, RX-2B in 6, 7, 10, 11 turn right, turn left foot, backward, forward and other functions of the output end.

3. 关于功率放大器的英文翻译，专业高手进

这段文字，语法上问题较多，有的专业术语也查不到，但我尽力翻了，供楼主参考。
Power amplifier's input stage is used shoot follower as buffer input. 功率放大器的输入级用发射跟随器（shoot follower）作为缓冲器输入。Second stage is used difference circuit as small signal voltage amplifier stage. 第二级采用差分电路作为小信号电压放大器级。Set electricity stage as constant current source loading. 将电气级设定为恒定的电流源负载。There is higher voltage gain and indissoluble work, small nonlinear distortion. 存在较高的电压增益和不能分解的功，以及小的非线性失真。 Third stage's main voltage amplifier stage is used sharing shoot stage circuit. 第三级的主电压放大器级采用共享的射发射级电路。Set electricity stage loading also is constant current source. It can make signal voltage amplifier to large enough. 同样将电气级负载设定为恒定的电流源。它可使信号电压放大器足够大。Between second and third stage also is used shoot follower to isolate. 在第二和第三级之间，也采用发射跟随器来隔离。Fourth stage is output push stage. 第四级是输出推挽级。Shoot follower is consisting of complementary middle-power double tubes, which are both installed on main radiator with bias control tube together. 发射跟随器由补充的中功率双管构成，它们都与偏置控制管一起安装在主辐射器上。Such has good temperature compensation and make output stage work steadily. 这样有良好的温度补偿作用，而且使输出级稳定工作。Fifth is power output stage, is consisting of 150W Toshiba mutual-complementing double tubes (C5200/A1943), when working in Ⅰstate, there are higher efficiency and strong output power. 第五级是功率输出级，它由150W的东芝互补双管（C5200/A1943）构成，当在电流（I）状态下工作时，具有较高的效率和强的输出功率。