Trystan Casey
In electrical engineering, space is often constrained, so abbreviations are used for circuits, conduits, sizes, and tools. SB could stand for Slow Blow, a type of electric fuse, or Sit Bo Log, though the meaning may vary depending on the context and specific office or schematic. For example, SB19 could refer to a solder bridge, which is also referred to as a jumper.
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What You'll Learn
- SB can stand for Sit Bo Log in electrical terms
- SB19 is a solder bridge that allows you to add/remove the pull-down resistor on the BOOT1 signal
- SB can stand for shorting block
- SB is used in the names of iCE40 primitives, which originated from the company SiliconBlue
- SB may refer to a start/stop control
SB can stand for Sit Bo Log in electrical terms
SB can have several meanings in electrical engineering, and one of them is "Sit Bo Log".
Sit Bo Log, or SB, is a term used to refer to an electrical log recorded using a wireline. The term dates back to the early days of logging when the only types of logs were spontaneous potential and resistivity logs, which were recorded using conventional electrode devices. These conventional electrical devices have four electrodes: current-emitting (A), current return (B), measure (M), and measure reference (N). These electrodes can be placed in different configurations, with the two most common being normal and lateral. The currents used are typically low frequency, usually less than 500 Hz.
The first electrical log of this type was recorded on September 5, 1927, in the Pechelbronn field in Alsace, France, by H.G. Doll. This early form of electrical logging measured the spontaneous potential and resistivity of the subsurface, providing valuable data for various applications, including groundwater exploration and geological studies.
It is important to note that the term "Sit Bo Log" does not appear to be a widely recognized or standard acronym in the field of electrical engineering. The usage of "SB" in this context may be specific to a particular organization, region, or group, and it is always a good idea to clarify the terminology when encountering such abbreviations.
Additionally, in the field of electrical engineering, "SB" can also refer to other concepts. For instance, "SB" can stand for "solder bridge," which is a component that allows for the addition or removal of a pulldown resistor on a signal. In some cases, "SB" could also be interpreted as shorting block, which is related to the concept of a jumper or a 0-ohm resistor. These terms are often used interchangeably, depending on the context and the specific schematic design being discussed.
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SB19 is a solder bridge that allows you to add/remove the pull-down resistor on the BOOT1 signal
In electrical engineering, the term "SB" is used to refer to a solder bridge or shorting block. A solder bridge is a pair of pads on a trace that can be connected with a solder ball. It is a simple and low-cost way to create variants of a PCB layout without changing the schematics or rerouting traces.
SB19 is a type of solder bridge that is used to add or remove the pull-down resistor on the BOOT1 signal. A pull-down resistor is connected to GND, which means that when a button is not pressed, electricity flows through the resistor, creating a voltage difference. This results in a low or zero reading.
The BOOT1 signal is shared with a GPIO pin, but the specific pin it is mapped to may vary depending on the MCU. For example, in some MCUs in the F4 range, BOOT1 is mapped to PB2.
By using the SB19 solder bridge, designers can easily create different configurations of the same board design. This allows for flexibility in the assembly process, as the signal paths can be chosen to activate or deactivate specific circuit blocks.
In summary, SB19 is a solder bridge that provides the option to include or exclude the pull-down resistor on the BOOT1 signal, enabling customization of the circuit behavior according to specific requirements.
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SB can stand for shorting block
SB can stand for a shorting block, a mechanical device used to create a short circuit between electrical nodes. Shorting blocks are used to test or troubleshoot electrical circuits, allowing technicians to confirm that opens are indeed open. They are often used in electronic test labs or on-site testing environments, providing engineers and technicians with a tool to easily connect or disconnect a test accessory to parts of a circuit.
Shorting blocks may be made of a conductive metal block or plastic with an electrically conductive surface. They are connected to various points in a circuit via a connector, socket, or test points. A new short circuit is formed by connecting the terminals with a conductor, such as a wire, or through the metal shorting block itself.
When testing electronic devices, it is essential that all contacts on the device make reliable electrical contact with the corresponding pins in the socket to ensure accurate results. Shorting blocks can be used to tie all pins to the ground and create a short circuit. A low-voltage signal can then be run to each pin to check for continuity. Any open pins in the test results indicate a poor or non-existent electrical path, suggesting damaged or contaminated pins.
In the context of current transformers (CT), shorting blocks are used to bypass the CT secondary current flowing to the connected device by inserting a short circuit screw. This allows for the safe removal of the connected device, such as meters or relays, and prevents an open circuit CT. CT shorting blocks are particularly useful during maintenance or upgrades of devices connected to CT.
It is important to note that shorting blocks should only be used with low voltage and low current to avoid creating high-current paths that can cause damage or safety hazards.
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SB is used in the names of iCE40 primitives, which originated from the company SiliconBlue
The use of "SB" in iCE40 primitive names, such as SB_DFF, SB_LUT4, SB_HFOSC, and SB_RAM, can be traced back to the company SiliconBlue, which originally designed the iCE40 architecture. SiliconBlue Technologies, a fabless designer of integrated circuits based in Santa Clara, California, was founded in 2005 by former employees of several prominent companies in the industry, including Actel, AMD, Lattice, Monolithic Memories, and Xilinx. John Birkner, one of the inventors of programmable array logic, was among the notable founders of the company.
SiliconBlue played a significant role in the development of the iCE40 product family, which was officially released in July 2011. The company utilized a TSMC 40 nm process node for the production of these devices, aiming to reduce power consumption compared to competing FPGAs in the market. In April 2011, SiliconBlue announced its upcoming product families, code-named "Los Angeles" and "San Francisco", which would also be produced using the same 40 nm process node.
The iCE40 product line gained traction, and in December 2011, Lattice Semiconductor acquired SiliconBlue Technologies in a $63.2 million cash buyout. As a result of this acquisition, Lattice acquired the iCE brand, manufacturing capabilities, and licenses for various patents, including XPM one-time programmable (OTP) memory technology. Following the acquisition, Lattice continued to use the iCE40 name for its iCE-branded devices produced on a 40 nm process node.
The use of "SB" in iCE40 primitive names is, therefore, a historical remnant of the technology's origins with SiliconBlue. It serves as a reminder of the contributions made by this innovative company and its impact on the iCE40 architecture and the broader FPGA landscape.
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SB may refer to a start/stop control
The use of abbreviations is common in electrical engineering to save space and time. The SB abbreviation has a few meanings in electrical engineering, one of which is "Sit Bo Log". However, SB may also refer to a start/stop control in a few different ways.
Firstly, SB could refer to a shorting block, which is a type of jumper or 0-ohm resistor. Shorting blocks are used to connect or disconnect two points in a circuit, which could be used to start or stop the flow of electricity.
Secondly, SB could refer to a solder bridge, which is a type of electrical connector. Solder bridges can be used to add or remove components from a circuit, which again could be used to start or stop the flow of electricity.
Additionally, SB could be an acronym for Slow Blow, a type of electric fuse. Fuses are used to protect electrical circuits from overload, and a Slow Blow fuse is a type that allows for brief current surges before shutting down the circuit. This function could be useful in starting or stopping electrical equipment, ensuring that the circuit is not interrupted by normal start-up surges.
It is important to note that the specific use of abbreviations can vary between organisations and even individuals. Therefore, when encountering the SB abbreviation, it is essential to refer to the specific documentation or context to confirm its precise meaning.
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