PROBLEM TO BE SOLVED: To provide an electrical power control circuit capable of reducing power consumption when a standby voltage is applied to a circuit board which is operable with a different rating power source.FUKUSHI TORU福士 徹
开关柜是指按一定的线路方案将一次设备、二次设备组装而成的成套配电装置,是用来对线路、设备实施控制、保护的,分固定式和手车式,而按进出线电压等级又可以分高压开关柜(固定式和手车式)和低压开关柜(固定式和抽屉式)。开关柜的结构大体类似,主要分为母线室、断路器室、二次控制室(仪表室)、馈线室,各室之间一般...
Near a midregion (105) of the flat member (101) there is a threaded aperture (106) for terminating one or more power leads. Interconnection between the flat member (101) and the circuit board is accomplished by a plurality of pin contacts (110) each of which has a compliant portion (...
A typical application for a DSO would be any type of board-level measurement such as when designing circuit boards for a switching power supply. Parameters that are typically measured and analyzed with a DSO or a power analyzer include, but aren’t limited to, switching power loss, device pow...
The onboard electrical propulsion system (OEPS) in a hybrid electric vehicle can be used to eliminate the need for a standalone charger for providing plug-in battery charging, vehicle-to-grid, and mobile power generation capabilities. This paper discusses several possible configurations for using OE...
1、电压互感器(Potentialtransformer简称PT,Voltagetransformer也简称VT)和降压变压器很相像,都是用来变换线路或母线上的电压。 2、电压互感器是一个带铁心的变压器。它主要由一、二次线圈、铁心和绝缘组成。当在一次绕组上施加一个电压U1时,在铁心中就产生一个磁通φ,根据电磁感应定律,则在二次绕组中就产生一个二次...
1.1 The Electrical Power System The electrical power system is a complex network consisting of generators, loads, transmission lines, transformers, buses, circuit breakers, etc. For the analysis of a power system in operation, a suitable model is needed. This model basically depends upon the type...
mounted on the housing, with tail portions of the terminals projecting from the housing for solder termination to the top surface of the circuit board. ... K Chu,KT Ser - EP 被引量: 3发表: 1999年 A Flexible-PCB on DPC GaN Power Module With Ultra-low Parasitic Inductance The gallium ni...
Do not install or remove power cables when the device is on. Transient contact between the core of the power cable and the conductor may generate electric arcs or sparks, which may cause fire or hurt human eyes. To ensure device and personal safety, use the power cable delivered with the ...
功率因数,是用来衡量用电设备(包括:广义的用电设备,如:电网的变压器、传输线路,等等)的用电效率的数据。 功率因数的定义公式:功率因数=有功功率/视在功率。 有功功率,是设备消耗了的,转换为其他能量的功率。 无功功率,是维持设备运转,但是并不消耗的能量。他存在于电网与设备之间,是电网和设备不可缺少的能量部分...