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Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
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Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
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Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
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LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
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At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
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In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
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Abstract Frequency Modulated Continuous Wave (FMCW) radar has been widely used in automobile anti-collision systems. This paper describes and compares the development of automobile anti-collision s...[Details]
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The following text is only about the modulation algorithm of Bluetooth technology. I think it is enough to add the Bluetooth module to the microcontroller, and it is not necessary to implement the ...[Details]
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Overview
Flexible fieldbus connectors based on D-Sub interface technology are specified for popular bus systems such as CAN-Bus, Profibus and SafetyBUS p in the IP-20 range. The comprehensive ...[Details]
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Nokia's Lumia phones on sale will not be able to upgrade to WP8 system
Last week, Microsoft's (Weibo) Windows Phone 8 system was launched in a grand ceremony, attracting the attention of the...[Details]
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1. Allowable temperature
When the transformer is running, its coil and core produce copper loss and iron loss, which are converted into heat energy, causing the temperature of the transfor...[Details]
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At present, mobile phones generally use
white light LED
as
the
backlight
element
of
the display
screen
, and the corresponding white light LED
driver
has beco...[Details]
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Characteristics of ultra-bright LEDs
The relationship curve between forward voltage drop (VF) and forward current (IF) shows that when the forward voltage exceeds a certain threshold (about 2V)...[Details]
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Working principle of micro-power disconnection anti-theft alarm: As shown in the attached figure. In the circuit, R1 provides bias voltage for the b pole of BG1. In the alert state, the bias voltag...[Details]
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0 Introduction
A/D conversion circuit is an important part of data acquisition system and an important functional interface in computer application system. There are two commonly used A/D conve...[Details]