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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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0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
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Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
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Abstract Aiming at the harm caused by mobile phone microwave radiation to human body and the incompatibility between mobile communication network and fixed-line network, a PSTN voice gateway using ...[Details]
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New processors in laptops place higher demands on power supplies: higher current, faster response to load steps, and faster adjustment of output voltage after the voltage identification (VID) code ...[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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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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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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In recent years, USB has evolved from a simple, low-speed peripheral bus for mice, keyboards, and other computer accessories to a bus of choice that can meet the needs of demanding applications, in...[Details]
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Providing mobility to products can bring additional benefits and open up new markets outside of existing applications.
Portable
The market for ultrasound equipment is a good example. Unti...[Details]
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When the tuning knob is turned, only one radio station is received, or no radio station is received. The visual moving piece does not move at all and remains in the original position. However...[Details]
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How it works
The relay coil is powered, 220V mains is added, the instantaneous contact coils of J1 at both ends are powered and drive the instantaneous contacts to operate, and the varistor RV...[Details]