Trystan Casey
In the context of wireless power transfer, an electricity receiver is a device that receives electrical energy transmitted wirelessly from a power source and converts it into a form that can be used by an electrical load. This technology eliminates the need for physical wires and offers convenience, increased mobility, and safety for electronic devices. The receiver device, such as a smartphone, contains a coil of wire called the receiver coil, which picks up the electromagnetic field generated by the transmitter coil in the charging pad or base station. When the coils are properly aligned and close together, electrical current flows through the receiver coil, charging the device's battery or powering it directly. This wireless power transfer is widely used for charging mobile devices and electric vehicles, as well as powering medical devices. Additionally, electricity receivers are also relevant in the context of radio communications, where they receive radio waves and convert them into a usable form, such as sound, video, or digital data.
| Characteristics | Values |
|---|---|
| Definition | A receiver is a circuit that accepts signals from a transmission medium (which can be wireless or wired) and decodes or translates them into a form that can drive local circuits. |
| Examples | Radio receiver, telephone receiver, television receiver, ultrasonic receiver, line receiver, standard interface receiver (e.g. USB), fiber optic device |
| Function | Receives radio waves and converts the information carried by them into a usable form, such as sound, video, or digital data. |
| Components | Antenna, electronic filters, electronic amplifier, demodulator |
| Power Source | Batteries, power cord plugged into an electrical outlet |
| Controls | Volume control, tuning control to select the radio station |
| Applications | Radio broadcasting, television, cell phones, wireless modems, radio clocks, remote control, wireless networking, aviation, shipping, navigation, weather forecasting, space flight, vehicle collision avoidance systems, military, global navigation satellite systems (GNSS) |
| Variants | Broadcast receiver, wireless power transfer receiver (WPT receiver) |
Explore related products
What You'll Learn
Wireless power transfer
There are two main categories of wireless power transfer techniques: near-field and far-field. In near-field or non-radiative techniques, power is transferred over short distances using magnetic fields and inductive coupling between coils of wire. Inductive coupling is the most widely used wireless technology and is commonly used for charging handheld devices like smartphones, electric toothbrushes, and electric vehicles. It can also be used for implantable medical devices like artificial cardiac pacemakers.
In far-field or radiative techniques, also known as power beaming, power is transferred over longer distances using beams of electromagnetic radiation, such as microwaves or laser beams. These techniques require the transmitter to be aimed at the receiver. Proposed applications for far-field techniques include solar power satellites and wireless-powered drone aircraft.
Electric Furnace Fuse Removal: A Step-by-Step Guide
You may want to see also
Explore related products
Radio receivers
The most familiar type of radio receiver is a broadcast radio receiver, which reproduces sound transmitted by radio broadcasting stations. However, radio receivers are also widely used in other areas of modern technology, including televisions, cell phones, wireless modems, radio clocks, and other components of communications, remote control, and wireless networking systems. For example, cell phones have digital receivers working in the UHF and microwave bands, as well as receivers that connect them to other networks such as WiFi and Bluetooth.
Magnetism and Electricity: What's the Real Difference?
You may want to see also
Explore related products
Digital electricity receivers
In general, a receiver is a device that accepts signals from a transmission medium (which can be wireless or wired) and decodes or translates them into a form that can drive local circuits. Examples include radio receivers, telephone receivers, and television receivers.
Digital Electricity can be used to provide remote power to devices such as security cameras, access points, radios, IoT devices, and more. It is also used in the digitalization of buildings, agriculture, and outdoor stadiums, where it powers intelligent edge sensors that facilitate real-time data transmission to the cloud.
Electric Scooters: 120W Motors and Their Speeds Explained
You may want to see also
Explore related products
Receiver coils
In the context of electricity and electronics, a receiver is a device or circuit that accepts signals from a transmission medium and converts them into a useful or usable form. For example, a radio receiver intercepts radio waves through an antenna and converts them into tiny alternating currents, which are then applied to the receiver. The receiver then uses electronic filters to separate the desired radio frequency signal from all the other signals picked up by the antenna.
The design of receiver coils can vary depending on the application. For instance, in wireless charging systems, the distance between the charging pads determines whether the Radiative (Far-Field) or Non-Radiative method is used. The Radiative method is suggested when there is more spacing between the charging pads, and it employs electromagnetic beam radiation for power transmission.
Additionally, receiver coils are used in medical devices and industrial clean rooms, where connectors may pose a risk of pollution. The performance of receiver coils in wireless power transfer applications is measured by factors such as the Q-factor and RDC values, with higher Q-factors and lower RDC values indicating better performance.
Electric Fence Troubleshooting: Quick and Easy Fixes
You may want to see also
Explore related products
Applications
A receiver is a device that accepts signals from a transmission medium, which can be wireless or wired, and decodes or translates them into a form that can be used by local circuits. Radio receivers, for example, detect and demodulate signals from the airwaves, while ultrasonic receivers turn ultrasound signals into electrical signals.
Radio receivers are an essential component of all radio-based systems, including wireless modems, radio clocks, and other communication, remote control, and wireless networking systems. They are also integral to television broadcasting, with television receivers accepting electromagnetic waves and converting them into television pictures.
In the field of radiolocation, receivers are used in conjunction with transmitters to determine the location or direction of an object. This technology is widely used in aviation, shipping, navigation, weather forecasting, space flight, vehicle collision avoidance systems, and the military. For example, radar systems use a receiver to locate objects such as aircraft, spacecraft, missiles, ships, or land vehicles.
Wireless power transfer is another application of receivers, where a transmitter device generates a time-varying electromagnetic field to transmit power to a receiver device, which then extracts and supplies the power to an electrical load. This technology can be used to power electrical devices where interconnecting wires are inconvenient, hazardous, or impossible, such as charging handheld devices like phones and electric toothbrushes, RFID tags, induction cooking, and electric vehicles.
In wireless powered communication, harvested power is used to supply the power of wireless information receivers, known as Wireless Powered Communication Networks (WPCN). This technology enables the powering of wireless information transmitters or receivers without the need for wires or batteries, increasing the mobility, convenience, and safety of electronic devices.
Strategies to Expand Your Electrical Business and Reach New Heights
You may want to see also
Frequently asked questions
An electricity receiver is a device that accepts signals from a transmission medium and converts them into a form that can be used by an electrical load.
Examples of electricity receivers include radio receivers, telephone receivers, and television receivers. Radio receivers accept radio waves and convert them into a usable form, such as sound, video, or digital data. Telephone receivers transform electrical impulses into audio signals, while television receivers accept video and audio signals.
Wireless power transfer systems consist of a transmitter device connected to a power source and one or more receiver devices. The transmitter device generates a time-varying electromagnetic field that transmits power to the receiver device, which then extracts the power and supplies it to an electrical load. This technology eliminates the need for wires and batteries, increasing the mobility, convenience, and safety of electronic devices.
Wireless power transfer offers several benefits, including increased convenience, reduced wear and tear on charging ports and cables, and improved efficiency in power transfer. It eliminates the need for physical cords and cables, as devices can be placed on a charging pad to start charging wirelessly. Additionally, wireless power transfer can enhance the safety of electronic devices by removing the potential hazards associated with interconnecting wires.
