
Short circuit test
... The test is conducted on the high-voltage (HV) side of the transformer where the low-voltage (LV) side or the secondary is short circuited. The supply voltage required to circulate rated current through the transformer is usually very small and is of the order of a few percent of the nominal voltage ...
... The test is conducted on the high-voltage (HV) side of the transformer where the low-voltage (LV) side or the secondary is short circuited. The supply voltage required to circulate rated current through the transformer is usually very small and is of the order of a few percent of the nominal voltage ...
SMB1N-670D
... LEDs are sensitive to electrostatic discharge (ESD). Precautions against ESD must be taken when handling or operating these LEDs. Surge voltage or electrostatic discharge can result in complete failure of the device. ...
... LEDs are sensitive to electrostatic discharge (ESD). Precautions against ESD must be taken when handling or operating these LEDs. Surge voltage or electrostatic discharge can result in complete failure of the device. ...
Chapter 8
... Capacitors are not suitable for laser trimming. That, in addition to the above mentioned disadvantages, is the reason why printed capacitors are used only in small values and for uncritical purposes (decoupling capacitors, etc.). Some properties of printed and discrete capacitors are compared in Tab ...
... Capacitors are not suitable for laser trimming. That, in addition to the above mentioned disadvantages, is the reason why printed capacitors are used only in small values and for uncritical purposes (decoupling capacitors, etc.). Some properties of printed and discrete capacitors are compared in Tab ...
Mitsubishi Electric ADVANCE Vol110 10
... lead from solder, we have adopted Sn-Ag-Cu solder that boasts the highest reliability among the various kinds of lead-free solders and has a track record of being adopted into industrial-use equipment. Figure 1 shows a printed circuit board to be built inside low-voltage circuit breakers. It is popu ...
... lead from solder, we have adopted Sn-Ag-Cu solder that boasts the highest reliability among the various kinds of lead-free solders and has a track record of being adopted into industrial-use equipment. Figure 1 shows a printed circuit board to be built inside low-voltage circuit breakers. It is popu ...
Printed Circuit Board Layout
... Switch-mode power supplies and DC-DC converters generate different voltages by switching the current into a transformer on and off rapidly. Typical switching frequencies are in the 10 - 100 kHz range. The spikes of current generated by this switching can couple noise to the power output and other de ...
... Switch-mode power supplies and DC-DC converters generate different voltages by switching the current into a transformer on and off rapidly. Typical switching frequencies are in the 10 - 100 kHz range. The spikes of current generated by this switching can couple noise to the power output and other de ...
430 eval board data sheet jan 9th - IXYS Power
... evaluation of the IXYS IXDS430, IXDD430, IXDI430, and IXDN430 MOSFET / IGBT driver, as well as to provide a building block for power circuit development. Any of three IC package types, SOIC-28, 5 lead TO-220, and 5 lead TO-263 are available on two different boards. The board layouts enable the use o ...
... evaluation of the IXYS IXDS430, IXDD430, IXDI430, and IXDN430 MOSFET / IGBT driver, as well as to provide a building block for power circuit development. Any of three IC package types, SOIC-28, 5 lead TO-220, and 5 lead TO-263 are available on two different boards. The board layouts enable the use o ...
assembly instructions amp6-basic
... Mute/un-mute switch. A jumper on the board can be used to mute / un-mute the amplifier. Preferably wire this to a switch on your casing panel. Muting the amp before power on minimizes the turn on thump and is recommended. A power supply. AMP6-BASIC is intended to be used with an external power suppl ...
... Mute/un-mute switch. A jumper on the board can be used to mute / un-mute the amplifier. Preferably wire this to a switch on your casing panel. Muting the amp before power on minimizes the turn on thump and is recommended. A power supply. AMP6-BASIC is intended to be used with an external power suppl ...
Advanced UV Lasers for Fast, High-Precision PCB - Spectra
... For IR wavelengths, the average power is relatively constant above some particular frequency, and therefore higher PRFs result in lower pulse energies, and vice-versa. As for the converted UV light, the maximum average power is achieved at some nominal frequency, PRFnom, the specific value of which ...
... For IR wavelengths, the average power is relatively constant above some particular frequency, and therefore higher PRFs result in lower pulse energies, and vice-versa. As for the converted UV light, the maximum average power is achieved at some nominal frequency, PRFnom, the specific value of which ...
Twitter - Texas Instruments
... actually more complex to design a board of this type due to the many things that can go wrong. The next level of complexity is double-sided. Initially, this type of board would seem to lend itself to easier routing because it has two layers of foil, and it is possible to route signals by crossing tr ...
... actually more complex to design a board of this type due to the many things that can go wrong. The next level of complexity is double-sided. Initially, this type of board would seem to lend itself to easier routing because it has two layers of foil, and it is possible to route signals by crossing tr ...
Slide 1
... the N-type area to the P-type area and holes moving in the reverse direction. To do this, you connect the N-type side of the diode to the negative end of a circuit and the P-type side to the positive end. The free electrons in the N-type material are repelled by the negative electrode and drawn to t ...
... the N-type area to the P-type area and holes moving in the reverse direction. To do this, you connect the N-type side of the diode to the negative end of a circuit and the P-type side to the positive end. The free electrons in the N-type material are repelled by the negative electrode and drawn to t ...
voltage drop table
... • Voltage drop becomes important when the length of a run of wire or cable becomes very long. Usually this is not a problem in circuits within a house, but may become an issue when running wire to an outbuilding, well pump, etc. • Excessive voltage drop can cause loss of efficiency in operation of l ...
... • Voltage drop becomes important when the length of a run of wire or cable becomes very long. Usually this is not a problem in circuits within a house, but may become an issue when running wire to an outbuilding, well pump, etc. • Excessive voltage drop can cause loss of efficiency in operation of l ...
MAXFILTERBRD Evaluates: MAX7408–MAX7415/ MAX7418–MAX7425 General Description
... An external clock that matches the specification of the corresponding IC data sheet can be used by cutting the trace of jumper JU2. Drive the CLK pin with a CMOS gate powered from 0 to VDD. Apply the clock signal to the CLK pad. ...
... An external clock that matches the specification of the corresponding IC data sheet can be used by cutting the trace of jumper JU2. Drive the CLK pin with a CMOS gate powered from 0 to VDD. Apply the clock signal to the CLK pad. ...
W. Rieutort-Louis, J. Sanz-Robinson, J.C. Sturm, S. Wagner, and N. Verma, "Thin-film Transistors and Circuit-design Styles for Scalable Control and Access Functionality over Sensor Arrays on Plastic", MRS Meeting (APR 2012).
... at 180°C). TFT gate dielectrics are optimized for minimal gate leakage (0.1pA at Vgs=10V), essential for maintaining in-circuit dynamic nodes. Etching processes are chosen for minimal source-drain leakage at Vgs=0V (1pA), sufficient uniformity in threshold voltages as well as large on-off ratios [10 ...
... at 180°C). TFT gate dielectrics are optimized for minimal gate leakage (0.1pA at Vgs=10V), essential for maintaining in-circuit dynamic nodes. Etching processes are chosen for minimal source-drain leakage at Vgs=0V (1pA), sufficient uniformity in threshold voltages as well as large on-off ratios [10 ...
YI-WS5S20N(4)
... After soldering the LEDs, the epoxy bulb should be protected from mechanical shock or vibration until the LEDs return to room temperature. Direct soldering onto a PC board should be avoided. Mechanical stress to the resin may be caused by the PC board warping or from the clinching and cutting of the ...
... After soldering the LEDs, the epoxy bulb should be protected from mechanical shock or vibration until the LEDs return to room temperature. Direct soldering onto a PC board should be avoided. Mechanical stress to the resin may be caused by the PC board warping or from the clinching and cutting of the ...
product Flyer Mini K HV – Compact Precharge Relay
... the Mini K HV takes over the charging of the filter capacitors over a precharge resistor directly before the operation of the main relay, protecting the main relay‘s contacts from extreme inrush currents. With significantly reduced dimensions of 25.5x20.7x19.3mm for the PCB version, the Mini K HV re ...
... the Mini K HV takes over the charging of the filter capacitors over a precharge resistor directly before the operation of the main relay, protecting the main relay‘s contacts from extreme inrush currents. With significantly reduced dimensions of 25.5x20.7x19.3mm for the PCB version, the Mini K HV re ...
Student`s Checklist
... I can show my understanding of effects, ideas and relationships by describing and explaining: how electric currents are a flow of charged particles what is meant by internal resistance and the effect of e.g. an electron beam in a TV tube, electrons in a internal resistance in a circuit metal, el ...
... I can show my understanding of effects, ideas and relationships by describing and explaining: how electric currents are a flow of charged particles what is meant by internal resistance and the effect of e.g. an electron beam in a TV tube, electrons in a internal resistance in a circuit metal, el ...
Printed circuit board

A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided (one copper layer), double sided (two copper layers) or multi-layer (outer and inner layers). Multi-layer PCBs allow for much higher component density. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate.FR-4 glass epoxy is the primary insulating substrate upon which the vast majority of rigid PCBs are produced. A thin layer of copper foil is laminated to one or both sides of an FR-4 panel. Circuitry interconnections are etched into copper layers to produce printed circuit boards. Complex circuits are produced in multiple layers. Printed circuit boards are used in all but the simplest electronic products. Alternatives to PCBs include wire wrap and point-to-point construction. PCBs require the additional design effort to lay out the circuit, but manufacturing and assembly can be automated. Manufacturing circuits with PCBs is cheaper and faster than with other wiring methods as components are mounted and wired with one single part. Furthermore, operator wiring errors are eliminated.When the board has only copper connections and no embedded components, it is more correctly called a printed wiring board (PWB) or etched wiring board. Although more accurate, the term printed wiring board has fallen into disuse. A PCB populated with electronic components is called a printed circuit assembly (PCA), printed circuit board assembly or PCB assembly (PCBA). The IPC preferred term for assembled boards is circuit card assembly (CCA), and for assembled backplanes it is backplane assemblies. The term PCB is used informally both for bare and assembled boards.The world market for bare PCBs reached nearly $60 billion in 2012.