power switching circuit

With the switch frequency IGBT switching device input impedance high, high, high temperature extremes, driving circuit is simple, driving power small, components such as small loss more than the advantages, is extremely ideal switch components.

IGBT开关器件具有开关频率高、输入阻抗高、极限温度高、驱动电路简单、驱动功率小、元件损耗小等多个优点，是极为理想的开关元件。

High frequency switching power supply made from it can not only simplify the circuit, but also can improve the EMC characteristics and reduce the cost.

采用它制作高频开关电源，不仅简化了电路，同时可以改善电源的电磁兼容性能，且降低了制作成本。

Hours Low impedance, Suit for use in switching power supplies and high frequence circuit.

·85℃2000小时,低阻抗, 适用于开关电源及高频电路.

This paper introduces a kind of DC-DC PWM switching mode power supply driven by VMOS and applied to Program Exchange. The principle and circuit are presented.

介绍了一种用于程控交换机的由VMOS管驱动的DC-DC PWM开关电源的工作原理与电路设计。

In addition to design methods and schematic of the main cell circuit modules, this paper also put forward measures of reducing switching noise on monolithic switching power IC.

文中除了对芯片设计方法、思路及主要电路模块结构的设计方案进行讨论外，还提出了减小单片集成开关电源噪声的措施。

The results show that the circuit has finished feature design, and reached design targets; Leakage current has met the requirements for armarium. Firstly, this thesis gives a in-depth analysis on the basic principles of switching power.

结果表明电路完成了设计功能，达到设计指标；漏电流满足医疗设备要求。

Research on Soft Switching Power Factor Correction Circuit with Power Electronics Integration Technology

采用电力电子集成技术的软开关PFC电路的研究

For example, switching power supply circuit that is an important indicator is the high power factor hard to reach this target, in the power circuit design is necessary to choose a variety of electronic switch components, to the power of transformation.

例如开关电源电路，该电路的一个重要硬性指标就是高功率因数，为了达到这一指标，在电源电路的设计中就要选择各种电子开关元器件，来进行电能的变换。

Tape out device and test. Extraction of device parameters and the establishment of device models the models use for switching power supply circuit design and simulation.

器件流片、测试后，提取器件参数以及建立器件模型，然后进行开关电源电路设计和仿真。

Circuit, logical control circuit, switching power supply main circuit and its parameters calculate were discussed.

介绍了稳定可靠的调Q电路、逻辑控制电路和开关电源的主电路及其参数计算。