4 common MOS transistor gate drive circuits, how many have you used?

MOS tubes are widely used in switching power supplies because of their low conduction internal resistance and fast switching speed. To make good use of a MOS tube, choose a MOS tube, and then the design of the driving circuit is very critical. The following share several commonly used drive circuits. 01IC direct drive type […]

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Right leg drive circuit principle? ECG acquisition must have simulation files

Original text from official account: Engineers See the sea Get the simulation file, official account background reply: right leg drive The following figure is a typical ECG amplification circuit. AD620 is a 3-op amp instrument amplifier, and ad705j constitutes the right leg drive circuit,The main function of the right leg drive circuit is to improve […]

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How to select LED lighting driver IC?

As a kind of light-emitting device, led needs a specific drive circuit to control its current. Generally, when there are a large number of light-emitting diodes or the power consumption of diodes is relatively large, it needs to be driven, and often the drive is several levels of drive. These levels of drive are integrated […]

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Functional characteristics of LED display control drive circuit vk1s68c

Product model: vk1s68c Product brand: vinka/ Yongjia wechat / Yongjia wechat Packaging form: ssop24 Shenzhen Yongjia Weidian Technology Co., Ltd Vk1s68c is an LED display control driving circuit with 1/5 ~ 1/8 duty cycle. It consists of 10 segment outputs, 4 gate outputs, 3 segment / gate outputs, a display memory, a control circuit and […]

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Design of LED driving circuit based on linear power supply

I preface Leo is more energy-saving, small in size and high in efficiency than traditional bulbs, so it is more and more widely used at present. LED is a device that converts electric energy into light energy. Its essence is a special diode. When there is a forward voltage bias at both ends of LED, […]

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Design of LED driving circuit based on buck circuit

I preface The disadvantage of using linear regulator to drive LED is that a considerable part of power will be lost on the linear regulator, resulting in serious circuit heating and low energy conversion efficiency. On the other hand, due to heating, the driving capacity of linear regulator is limited. In order to solve these […]

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Design of right leg drive circuit based on ad705j

Original text from official account: engineers looking at the seaThe following figure is a typical ECG amplification circuit. AD620 is a 3-op amp instrument amplifier. Ad705j constitutes a right leg drive circuit. The main function of the right leg drive circuit is to improve the common mode rejection ratio and reduce 50Hz or 60Hz power […]

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Key points in the design of SAR ADC driver circuit

SAR ADC is a very common topology, which provides a good balance between speed, resolution and power. A key advantage of SAR ADC is that there is little delay. Therefore, SAR ADC can be used in many application fields. This paper will introduce the principle of SAR ADC and some key points in the design […]

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Lt2221 stepping motor drive circuit

Lt2221 stepping motor drive circuit Source:Electronic enthusiast network Author:XiaolanNovember 28, 2011 10:55 0 share Wechat QQ space Sina Weibo Tencent Weibo Renren [guide]The paper feeding operation of lt2221 thermal printer core is completed by the stepping motor in the core. The driving circuit is composed of a3967 stepper motor driving chip. A3967 is a complete […]

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