研究了微机中具有代表性的半桥脉宽式开关电源的电路原理和特点，提出了简捷、合理的检修方法和步骤，以及关键测试点的经验数据和波形图。
The circuit principle and features of the typical half - bridge switching power source, the reasonable overhauling methods and steps and the key test data waveshapes in computer are discussed.
QF3为检修电源开关。
主电板地汇流排系统应配有隔离开关，这样，即使汇流排的任一区段发生故障时，我们可以检修，而不影响船舶的航行。
The busbar system of the main switchboard should be equipped with isolators. In this way, if any busbar section is in trouble, we may overhaul the board, which will not affect the ship's navigation.
对线性可变电阻型、开关型、编码型节气门位置传感器常用的检修方法进行分析和探讨。
The author analyzes common ways to inspect the air throttle position sensors of linear variable resistor 'switching and decoding.
对开关电源电路的常见故障进行了分析，介绍了一种半桥驱动型开关电源电路的故障检修思路和开关电源电路静态检修法。
The paper analyses the common faults of switching supply circuit and introduces a method for fault overhaul of half-bridge switching supply circuit.
高压开关柜中的接地开关是作为检修时，保证人身安全，用于接地的一种机械接地装置。
The earthing switch in high-voltage switchgear is a kind of mechanical earthing device used at the time of maintenance and repair to insure the safety of personnel.
主要介绍医疗设备开关电源的电路原理与故障的检修方法。
Describes mainly the circuit principle of switch power supply for medical equipment and troubleshooting of common malfunctions.
以sw7型开关配cy4型机构系统为例，列举出同期调整的三种方法，并分析其优劣，为检修同行们提供了理论依据。
Following the example of type CY4 actuator fitting in type SW7 circuit breaker, this article presents three ways of simultaneity control and analyses their merits and demerits.
机顶盖检修口设有安全检测开关，形成断电安全装置，当检修口打开时自动切断电机电源，确保检修人员的人身安全。
There is safety switch at the inspection hatch of the hood. If the hatch is opened, the power of motor will automatically cut off to ensure the safety of inspection personnel.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
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