There is an error in the AD circuit simulation, and I, a newbie, can't solve it. Later, I will need to learn C programming of the microcontroller, and I am completely confused....
Here we present a novel low-voltage active mixer topology which enables 3-V double-balanced active mixer operation from wide-bandgap GaAs-based heterojunction bipolar transistors (HBT's). The compact ...
[i=s] This post was last edited by ywlzh on 2016-7-18 13:16 [/i] The board uses stm32 for communication initialization. UDP, TCP-client, and PC network debugging assistant communicate normally. One th...
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Which 3G standard do you think is better? 3G licenses have been issued. China Mobile: TD-SCDMA China Unicom: WCDMA China Telecom: CDMA2000 Which standard do you think is better? Let's talk about it!...
[i=s]This post was last edited by allankliu on 2016-9-15 17:26[/i] This morning I saw an email forwarded by Zerynth, which said that he wanted to expand the hardware platform and do a research with re...
A ventilator is an instrument that can replace or assist a person's respiratory function. It is suitable for artificial respiration of patients with respiratory failure or even respiratory arrest. I...[Details]
As medical equipment develops towards intelligence, miniaturization, serialization, digitization, and multi-functions, the logic control devices in medical equipment have also evolved from medium- a...[Details]
How can we get the highest performance from an A/D converter? The obvious answer is to use good design and board layout, but there are other techniques that can be used to improve performance. We can ...[Details]
Sensors have made inroads into automotive, medical, industrial and aerospace applications. But you may not see anything changing yet. Growing demands for safety, convenience, entertainment and efficie...[Details]
Implantable Cardivoerter Defibrillators (ICDs) have been in common use for several years. ICDs apply a high voltage pulse between two electrodes connected to the heart, which detects cardiac fibrillat...[Details]
Introduction: Design of automated test systems
Challenges
To ensure the quality and reliability of products delivered to customers, test managers and engineers use automated test system...[Details]
In response to a series of problems caused by the backwardness of traditional water meters, the Ministry of Construction of China has proposed the requirement of "three meters per household" for ur...[Details]
Lithium-ion battery is a widely used rechargeable battery. It has the advantages of high single-cell operating voltage, small size, light weight, high energy density, long cycle life, rapid full ch...[Details]
In the development of high-stability lasers, real-time monitoring of the working state of the laser is an issue that needs to be focused on. This system realizes the high-stability laser temperatur...[Details]
Preface
TD-SCDMA mobile communication standard is the world's third-generation mobile communication standard with independent intellectual property rights in my country. It has become a highli...[Details]
As the whole equipment is becoming increasingly miniaturized and power-saving, low-dropout linear regulators (LDOs) with low power consumption are becoming the mainstream in the market for linear regu...[Details]
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
As the demand for wireless and wired services in the communications market continues to grow, the telecommunications industry recognizes the need to break away from the shackles of proprietary or p...[Details]
Popular consumer electronics products such as game consoles, digital televisions (DTVs) and personal computers are becoming more and more versatile and feature higher performance. The enhanced data...[Details]
Adding "intelligence" to measurement systems is becoming more common as 8-bit microcontrollers are inexpensive, widely available, and can be programmed using today's common high-level languages, su...[Details]
Analog electronics
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