输入电压范围

随着分布式电源系统（DPS，DistributedPowerSystem）得到普遍的重视，LLC谐振变换器以其在宽输入电压范围和良好的电压调节性能备受研究者的青睐。

With the distributed power system ( DPS ) received widespread attention , LLC resonant converter with its wide input voltage range and good voltage regulation performance received much attention from a lot of researchers .

随着新能源应用领域不断拓宽，新能源开发技术要求开关DC-DC变换器具有宽输入电压范围。

With the development of new energy , the technology of using new energy requires switching DC-DC converters have wider input voltage range .

而其中的APFC技术以其输入电压范围宽、体积小、重量轻、功率因数高等优势，得到了尤其广泛的应用。

APFC technology is widely used for its wide input range , small size , little weight and high power factor .

但LED功率的提升，给驱动芯片的驱动能力和输出电流的稳定性控制提出了更高的要求。针对大功率LED的特点，本文设计一款宽输入电压范围的大功率LED驱动芯片。

The increase of the LED power have higher requirement for the drive current of the driver chip and the stability of the output current . A type of wide input range high power LED driver chip was designed in this thesis .

当PFC级采用变输出电压控制后，为了减小后级变换器的输入电压范围，本文提出一种复合式PFC变换器。

When PFC stage uses VVB control , in order to reduce the input voltage range of the next DC-DC stage , this dissertation proposes a hybrid Boost PFC converter .

这种新的设计方法从理论上给出了求解PFC输入电压范围内最低频率的方法，并且可以根据这一最低频率求取电感最大值。

We got a new way to solving the minimum frequency in the range of input voltage , and also we got the maximum parameter of inductor when the frequency is the lowest .

该芯片的输入电压范围是7V-42V，最大输出电流可达1.5A，并且可以通过外接DC电压或PWM信号进行亮度控制。

The input voltage of the circuit is from 7V to 42V , and the output current is up to 1.5A . It can use DC voltage or PWM signal to control the brightness .

从实现上来说，谐振变换器相对PWM变换器，具有开关工作频率高、开关损耗小、允许输入电压范围宽、效率高、重量轻、体积小、EMI噪声小、开关应力小等优点。

Considering from realization , resonant converter has the advantage of higher operation frequency , lower switching loss , wider range of input voltage , higher efficiency , lighter weight , smaller volume , smaller EMI , lower switching stress to PWM converter .

实验结果表明文中所设计的带APFC的AC/DC变换器在宽广的输入电压范围（95～250V）下能够正常工作，各项性能指标均符合要求。

Experimental results show that the AC / DC converter can work well with satisfactory performance parameters in the universal input range of AC 95 ~ 250 V.

采用0.6μMBiCMOS工艺，设计了一种高性能、低功耗的限流电路，并成功地将其应用于一款高效率、宽输入电压范围的DC-DC升压型开关电源管理芯片中。

A low power , high performance current-limiting circuit implemented in 0.6 μ m BICMOS process , which has been successfully applied to the chip of high efficiency , wide input voltage range DC-DC boost switch power management chip , is presented .

而三电平DC-DC变换器的研究发现，复合式全桥三电平变换器不仅可以降低原边开关管的电压应力，还可以减小输出滤波电感量，适用于宽输入电压范围。

The research on the three-level DC-DC converter reveals that the hybrid full-bridge three-level ( HFB TL ) not only can reduce the voltage stress of the primary switches , but also can decrease the filter inductance , which fits for the wide input voltage range .

基于此结构，实现了一种超低压运算放大器。仿真分析表明，该运算放大器能够实现轨到轨（rail-to-rail）的共模输入电压范围和输出电压摆幅，以及较高的共模抑制比。

Based on the structure , an ultra-low voltage operational amplifier is designed , which provides a rail-to-rail common-mode input voltage range and output voltage swing , as well as a high common mode rejection ratio ( CMRR ) .

输入电压范围为2.8~5V，输出电压为1.8V，负载电流最大为200mA。

The input voltage range is 2.8 to 5 V , and the output voltage is 1.8 V , with maximum load current of 200 mA .

通过分析和比较，得出结论：提出的整流电路在一个较大输入电压范围内和低输出电压、大输出电流的负载条件（3.3V，5A）下，其效率高达85%。

It is clarified that the proposed rectifying circuits obtain a high efficiency over 85 % within a wide input voltage range and with the load conditions of low output voltage and big output current ( 3.3 V and 5 A ) .

对100W两级AC/DC变换器效率和空载损耗进行了研究，提出了改进电路，使变换器的满载效率在宽交流输入电压范围内大于88.9%，空载损耗小于0.74W。

This paper presents the study of 100W two-stage AC / DC converter . The measured full load efficiency of the converter is more than 88.9 % , and the open - load loss is less than 0.74W over the universal line range .

实验结果表明，该校正器在宽输入电压范围（90～260V）下能够正常工作，功率因数达到0.99。

A 400W experimental circuit is built and the experimental results showed that the active power factor corrector can work well with the power factor of 0.99 in the wide input voltage range of AC 90 ~ 260V .

仿真结果表明，该芯片在2.5V～5.5V的输入电压范围内可以实现典型的13V输出电压，转换效率最高可达87%，具有实现电路简单、输出电压精度高、功耗低等优点。

The simulation results show that the output voltage can be high to 13V over an input range of 2.5V ~ 5.5V , the efficiency could be 87 % . The circuit also has simple architecture , high accurate output and low power loss .

内燃机车用宽输入电压范围开关电源

Switching power supply with wide input voltage range for diesel locomotive

一种具有较宽输入电压范围的电源适配器的设计

A Design of Adapter with Large-Scale Operation Voltage

根据控制系统对电源的需求设计了宽输入电压范围的辅助电源。

Also a auxiliary powersupply is designed according to the power requirements of the control system .

同时设计了两个输入电压范围不同的全桥变换器，与以上这种方案对比。

Two FB converters with different input ranges are designed and built up to compare with the proposed approach .

实验证明，该电路具有输入电压范围宽，线性度好，准确度高的优点。

, the input range of voltage is wide , the linearity is good and the accuracy is high .

另外，为了改进功率放大器输入电压范围，一种互补折叠式共源共栅结构代替原有的共源共栅结构，在电路性能没有降低的情况下输入信号范围达到端到端输入。

On the other hand , in order to improve the input range of the amplifier , a complementary folded-Cascode operational amplifier is submitted .

实验结果表明，该逆变器具有控制方式简单、输入电压范围宽及效率比较高等优点。

The experimental result shown that the proposed inverter owns the advantage of simple control scheme , universal range of input voltage and high efficiency .

在较大的输入电压范围内，提供稳定的输出电压；在全负载范围内高效率工作的预期设计目标均以实现。

The design goal of this system , which is generating stable output voltage from a large input voltage range and operation with high efficiency in full load range , was successfully realized .

本文分析了方案的基本原理和性能，将单脉冲调制应用于12阶梯波逆变器可以在较大的输入电压范围内调节输出电压的同时保证波形具有良好的正弦性。

While the single pulse width modulation is used , the12 stairs waveform inverter can achieve the output voltage regulated in a wide range of input voltage as well as the perfect output waveform .

此控制法有利于输入电压工作范围的大幅度扩大，以及较好的输出电压校准。

This results in a wider range of allowed source voltage , and also in improved output voltage regulation .

该电路的放大器使用体驱动技术，提高了输入电压共模范围；

The body-driven technique of the amplifier is adopted , thus enlarging the region of common - mode input voltage .

本文通过对DC/DC变换器基本工作原理的深入学习研究，设计了一款新型的升压型开关电源芯片，具有输入电源电压范围宽、转换效率高、片外电路简单等特点。

In this paper , after in-depth studying and researching the basic principles of DC / DC converter , a new type of step-up switching power supply chip was designed .

研制了一台30W/15V反激型临界导电模式功率因数校正开关变换器，其输入电压动态范围为AC90~270V，其输入功率因数达到0.956。

A prototype of 30W / 15V CRM PFC flyback converter is implanted with an input voltage range of AC90 ~ 270V , the power factor of which reaches 0.956 .