介绍了超短波通信电台射频功放功率保护控制电路的功用和工作原理，并给出了原理电路。
This paper introduces the application and principle of RF power amplifier's safeguard and control circuit in ultra short communication radio. The principle circuit is given.
黑启动初始阶段，小系统空载运行的情况下，由于逆功率保护而往往发生机组并车失败问题。
When a small system is in on-load operation in the early stage of black start, unit paralleling may fail due to reverse power protection.
提出在过功率保护电路中利用斜坡电压取代传统的固定电压，以达到不同输入电压下的恒定功率限制。
Comparing to conventional fixed voltage, the slope limit voltage in the over power protect circuit can improve the constant power limit capability in different input voltage.
此前，医学遥测设备的运行没有得到保护，可能受到空白电视频道或为低功率工作预留的特别频道的干扰。
Prior to this, medical telemetry devices had been operating unprotected from interference either on vacant TV channels or on special channels reserved for low-power operation.
采用低功率、低噪音的风机，吹风口成风刀状，吹干风温为常用温，有效保护物料本身的色泽和品质，效果更佳。
The low power, low noise, blower fan, wind knife mouth dry air temperature is used, the effective protection of material itself color and quality, the effect is better.
研究了试件表面处理状态、保护气体、激光输出功率、焊接速度、激光脉冲频率等工艺参数对焊接质量的影响规律。
The influence of the parameters such as surface treatment state, laser output power, welding speed, protective atmosphere, and pulse frequency on the welding quality was studied.
在额定功率因素上施加150%额定负荷，并测量逆变器保护装置启动所需时间。
Apply150% rated load at rated power factor and measure the time required for the inverter protective devices to operate.
主要内容包括PWM斩波电路结构及功率开关器件的选择，驱动电路，保护电路以及软件编程。
The PWM chopper circuit and the selection of power switching elements, protecting circuits, driving units and software programming are given out.
输出保护功能：过电压，过功率，短路。
The output protection function: over voltage, over power, and over short circuit.
器件的双uvlo功能保护功率MOSFET不会因栅极驱动或电源电压过低而损坏。
Its dual UVLO feature protects the power MOSFET from damage in the event that the gate-drive or supply voltage is too low.
请在船上做保护试验，它们应包括失压，过载和逆功率试验。
Please carry out the protection test on board. They should ask brige for permission.
探讨了焊接工艺参数包括激光功率、焊接速度、正反面保护气体流量对焊接效果的影响。
The effect of processing parameters including laser power, welding speed and protection gas flow on the welding quality was researched in this paper.
如果一台发电机组没有运转，并且没有逆功率继电器保护，运转的机组就会驱动这个机组，这台机组上的发电机则变成电动机运行。
If one set stops and reverse power protection is not provided, the set still running will drive the set that has stopped. The generator on the set that has stopped will act as a motor.
论述了功率模块产生过电流的机理、检测方法及保护措施。
The mechanism of induced overcurrent in power module, methods of overcurrent measure and protection are introduced.
阐述了控制变压器功率选择、校验、保护及二次短路电流的计算方法。
This article explains power selection, adjustment and protection of control transformer and calculation method on secondary short circuit current.
我们为客户配置电电控箱、相关的安全保护器和大功率、高性能的排风机。
The machine is equipped with control panel box , security protection system and powerful suction motor fan.
取样物理量为无功功率，具有谐波测量及保护功能。
Sampling physical parameter is inactive power which has functions of harmonic measurement and protection.
多普勒负反应性反馈效应能在保护动作延迟的时间内将功率限制在可接受的水平。
The negative Doppler effect will limits the power to an acceptable level during the time delay for protective action.
同时采用软启动电路防止浪涌电流，保护功率开关管。
To protect power switches, soft-starting circuit was designed to overcome the surge current.
从电工学基本原理出发，详细讨论了变压器有功功率差动保护原理如何实现的问题。
According to the principle of electrotechnics, how to carry out power differential theory of power transformer is discussed.
数据采集卡采集程控电源的输出以实现对程控电源的闭环控制，采集发电机控制器和汇流条功率控制器的保护信号以计算延时时间。
Data acquisition card collects data about the power output to realize a close-loop control, and protection signal of the two controllers to compute the delay time.
该系统包括恒流源、光功率反馈、保护电路、温度控制等部分。
The system is composed of stable current source, light power feedback, protection circuit, and temperature controller.
功率器件采用智能功率驱动模块，其内置的保护电路大大提高了系统的可靠性。
The Intelligent Power Module is been used for power instrument, its inner protect circuit raise reliability of the system.
通过软件控制，实现荧光灯预热启动、二级调光、恒功率控制、异常保护等功能。
The software can ensure lamp's reliable pre-heating ignition and constant-power operation, and realize two grade dimming control, abnormity protection.
在差有功法的基础上，提出一种利用广义瞬时功率实现变压器保护的新原理。
On the basis of power differential method, a novel principle of transformer protection using generalized instantaneous power is presented.
差动保护因TA的饱和造成保护误动，采用功率方向保护避免因TA饱和造成误动。
Differential protection's unwarranted trip is often caused by saturation of TA. Avoid it by directional power protection.
本文论述了如何设计IGBT散热器，以提高其耗散功率，同时介绍了IGBT过热检测保护电路。
This paper discussed that how to design IGBT radiator to improve its radiating capability and introduced the protective circuits for IGBT overheat check.
其中逆变器、制动电路和保护电路均集成于大功率IPM模块之中。
The inverter module, the braking circuit and protecting circuits were integrated in high-power IPM module.
其中逆变器、制动电路和保护电路均集成于大功率IPM模块之中。
The inverter module, the braking circuit and protecting circuits were integrated in high-power IPM module.
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