Ultrasonic welding is an industrial technique whereby high-frequency ultrasonic acoustic vibrations are locally applied to workpieces being held together under pressure to create a solid-state weld. It is commonly used for plastics, and especially for joining dissimilar materials. In ultrasonic welding, there are no connective bolts, nails, soldering materials, or adhesives necessary to bind the materials together.
Radio-frequency identification (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information. Some tags are powered and read at short ranges (a few meters) via magnetic fields (electromagnetic induction). Others use a local power source such as a battery, or else have no battery but collect energy from the interrogating EM field, and then act as a passive transponder to emit microwaves or UHF radio waves (i.e., electromagnetic radiation at high frequencies). Battery powered tags may operate at hundreds of meters. Unlike a bar code, the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object.
RFID tags are used in many industries. An RFID tag attached to an automobile during production can be used to track its progress through the assembly line. Pharmaceuticals can be tracked through warehouses. Livestock and pets may have tags injected, allowing positive identification of the animal.
Since RFID tags can be attached to clothing, possessions, or even implanted within people, the possibility of reading personally-linked information without consent has raised privacy concerns.
An audio amplifier IC is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between20 - 20 000 Hz, the human range of hearing) to a level suitable for driving loudspeakers and is the final stage in a typical audio playback chain.
The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification, equalization, tone control, mixing/effects, or audio sources like record players, CD players, and cassette players. Most audio power amplifiers require these low-level inputs to adhere to line levels.
While the input signal to an audio power amplifier may measure only a few hundred microwatts, its output may be tens, hundreds, or thousands of watts.
A charge controller is basically a voltage or current regulator that keeps batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Most “12volt” panels put out about 16 to 20 volts, so if there is no regulation, the batteries will be damaged from overcharging. Most batteries need around 14 to 14.5 volts to get fully charged.
A charge controller limits the rate at which electric current is added to or drawn from electric batteries. It prevents overcharging and may prevent against over voltage, which can reduce battery performance or lifespan, and may pose a safety risk. It may also prevent completely draining a battery, or perform controlled discharges, depending on the battery technology, to protect battery life. The term “charge controller” may refer to either a stand-alone device, or to control circuitry integrated within a battery pack or battery recharger.
Solar batteries are designed to offer reliable, consistent, and low maintenance power for renewable energy requirements. These batteries can be subject to deep cycle applications and minimum maintenance in rural and power deficit areas. The batteries have a capacity to withstand partial state of charge operation. The Life of solar battery is dependent on the ambient temperatures and the number of times it is cycled and the depth of discharge. It is applied widely in household lighting, street lighting and in rural and urban cellular telecom installations. In the next couple years, the use will be increased by governmental agencies in the new and renewable energy.
Renewable energy is constantly evolving and challenging traditional utilities but solar battery could make power much easier to use and cut customers’ dependence on energy companies dramatically. Solar batteries allow homes and businesses to store solar power to use in the hours of darkness and can also help create “smart grids” that react to sudden power swings and free stored energy when needed.
Looking for ways to save the cost of lighting expense? Solar street light is the definitive answer for you. Operated by solar energy, it provides high illumination with economical cost. For such locations as pathways, trails, streets, roadways, and so on, solar street light offers lighting for the location where power supply is insufficient or inaccessible. It features light disassembled module, which makes it easy to install. You shall finish assembling it in few steps whilst saving more shipping cost.
Adopting the innovative 100lm/W LED lamps that increases 20% brightness with less power consumption endows solar street light with longer lifespan compared with normal ones. Solar power not only saves your cost by a large margin, but also stands as an eco-friendly energy that does zero harm to our environments.
A charge controller is basically a voltage or current regulator that keeps batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Most “12volt” panels put out about 16 to 20 volts, so if there is no regulation, the batteries will be damaged from overcharging. Most batteries need around 14 to 14.5 volts to get fully charged.
A charge controller limits the rate at which electric current is added to or drawn from electric batteries. It prevents overcharging and may prevent against over voltage, which can reduce battery performance or lifespan, and may pose a safety risk. It may also prevent completely draining a battery, or perform controlled discharges, depending on the battery technology, to protect battery life. The term “charge controller” may refer to either a stand-alone device, or to control circuitry integrated within a battery pack or battery recharger.
Having trouble gliding on your smartphone or iPad? A stylus pen is highly recommended for replacement of your fingers. A Stylus pen is a small pen-shaped instrument that is used to input commands to a computer screen, mobile device or graphics tablet. With touchscreen devices, you can place a stylus pen on the surface of the screen to draw or make selections by tapping the stylus on the screen.
Stylus pen is the primary input device for personal digital assistant. It is used on the Nintendo DS, Nintendo 3DS game consoles and the Wii U’s Wii U GamePad. Some smartphones require a stylus for accurate input. However, devices featuring multi-touch finger-input are becoming more popular than stylus-driven devices in the smartphone market. Capacitive stylus, different from standard stylus, can be used for these finger-touch devices, iPhone, etc.).
With
a piece of ribbon structure and a row of pin headers, a ribbon connector is a
type of connector, allowing a ribbon cable to be forced onto sharp tines on the
back of the contacts. The connectors at the end of a ribbon cable are known as
the insulation displacement connectors. It was designed to transfer digital
audio signals from compact disc players to outboard digital-to-analog
converters. Ribbon connector is used today with a wide range of audio and video
devices that output digital audio signals such as LCD’s, Plasma TV, LED’s, Air
Conditioners etc.
The modular design of pin headers and sockets provides a reliable mass
termination and highly effective approach to interconnecting PCBs, or
wire-to-board, separable header/socket applications. In addition, the most
striking features of this ribbon connector are high contact reliability, long
lifespan, high density insulated, color coded and low contact resistance.
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