电源设计应用
采用电容的电磁全隔离直流电源传输电路设计
本文提出了一种基于电容的全隔离直流电源传输电路，它依靠几组电容存储电荷来实现传输电能。由于电路输入、输出端不存在电磁耦合通路，电路实现了完全的电磁隔离。...
2009-03-11 1372
12v转15V、16V、18V、20V、22V、24V可调升
12v转15V、16V、18V、20V、22V、24V可调升压电路图 改变一下电阻，即可改变成15V、16V、18V、20V、22V、24V等不同类型电...
2009-03-06 8543
110v to 220v转换电路
110v to 220v转换电路的滤波电容采用4个200V／470uF的电容串，并联成一个100V／470uF的电容，见图1。当K合上时为110V电压输入，当K断开时为220V电压输...
2009-03-06 20145
220v转110电路图
该电路的滤波电容采用4个200V／470uF的电容串，并联成一个100V／470uF的电容，见图1。当K合上时为110V电压输入，当K断开时为220V电压输入，输出的直流电压都是（220*根...
2009-03-06 22103
A Quick Guide To Voltage Refer
Abstract: This application note discusses the three basic voltage reference topologies and their advantages and disadvantages. Covered topics include 3-terminal series mode references (bandgap and buried zener) and 2-terminal shunt refe...
2009-02-22 1297
Negative-Resistance Load Cance
Negative-Resistance Load Canceller Allows Voltage Reference to Drive Heavy Loads Abstract: This application note discusses how to build a high output drive voltage reference without sacrificing tempe...
2009-02-22 1387
Miniature, Precision Negative
Abstract: This application note discusses how to build a negative voltage reference without using external resistors or a negative supply by simply combining a simple charge-pump inverter and a positive output voltage reference. ...
2009-02-22 893
Controlling a Variable Voltage
Abstract: Semiconductor topic: Many linear and switched-mode power supplies and voltage regulators use a resistor network as feedback into the regulator to adjust the voltage output. This is typically done either by varying the values o...
2009-02-22 1540
Selecting the Right Series Vol
Abstract: This article provides an in depth analysis, procedure, and selection tables for selecting the optimum series voltage reference for voltage output DACs. It covers all of the important parameters such as: input supply voltage, r...
2009-02-22 938
Accurate DC-DC Converter Minim
Whether squeezing the last millijoule from your battery or operating a cooler CPU board, the goal is to burn less power. For many loads the power dissipation varies as the square of the applied voltage, so one approach is simply to minimiz...
2009-02-22 1358
Multi-Range ADC Use Voltage Re
A data acquisition board, in order to provide flexibility, must be able to accommodate various input voltage ranges. Handling low amplitude signals generally requires an increase in the number of bits of resolution, increasing cost....
2009-02-22 495
P-FET Linear Regulator Has Low
P-channel MOSFETs (P-FETs), though more expensive than pnp transistors, are free of the dissipation loss associated with base drive in a pnp circuit. P-FETs also have a lower saturation voltage at light loads (Figure 1). In fact, th...
2009-02-22 1334
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