Mutual Inductance in Diesel Power Module PCB Card Design Another consideration regarding Mutual Inductance in Diesel Power Module PCB Card Design is the separation of outward and return currents. As we shall discuss in more detail later, Kirchoff’s Law tells us that current flows in closed paths—there is always an outward and return path. The…
Stray Inductance on Auto Meter Pro-Controller Circuit Board Layout All conductors are inductive, and at high frequencies, the Stray Inductance on Auto Meter Pro-Controller Circuit Board Layout of even quite short pieces of wire or printed circuit traces may be important. The inductance of a straight wire of length L mm and circular cross-section with…
Dielectric Absorption on Aeromotive Electronics PCB Board Layout Dielectric Absorption on Aeromotive Electronics PCB Board Layout most noticeably influences dynamic circuit response, for example, settling time. Unlike circuit leakage, the effects aren’t usually linked to humidity or other environmental conditions, but rather, are a function of the board’s dielectric properties. The chemistry involved in producing…
Dynamic Effect on Thermocouple Amplifer Circuit Board Design Although static PCB effects can come and go with changes in humidity or board contamination, problems that most noticeably affect the dynamic performance of a circuit usually remain relatively constant. Short of a new Thermocouple Amplifer Circuit Board Design, washing or any other simple fixes can’t fix…
Grounded Guard Trace on Fuel Ignition Controller PCB Layout For the left-side inverting mode, note that the Pin 3 connected and Grounded Guard Trace on Fuel Ignition Controller PCB Layout surround the op-amp inverting input (Pin 2), and run parallel to the input trace. This guard would be continued out to and around the…
Dynamic Effect on PCB Board Manufacturing Although static PCB effects can come and go with changes in humidity or board contamination, problems that most noticeably affect the Dynamic Effect on PCB Board Manufacturing of a circuit usually remain relatively constant. Short of a new design, washing or any other simple fixes can’t fix them. As…
Guard Trace in Printed Circuit Board Layout For the left-side inverting mode, note that the Pin 3 connected and grounded Guard Trace in Printed Circuit Board Layout surround the op amp inverting input (Pin 2), and run parallel to the input trace. This guard would be continued out to and around the source and feedback…
Smaller Package in PCB Board Layout Modern assembly practices have favored Smaller Package in PCB Board Layout such as eight pin MINI-DIP and SOIC types. Some suggested partial layouts for guard circuits using these packages are shown in the next two figures. While guard traces may also be possible with even more tiny op amp…
Guard Pattern in PCB Board Design There are important caveats to be noted with implementing a true high quality Guard Pattern in PCB Board Design. For traditional through hole PCB connections, the guard pattern should appear on both sides of the circuit board, to be most effective. And, it should also be connected along its…
Static PCB Board Effect in PCB Manufacturing If a circuit displays sensitivity to Electrical Leakage in PCB Manufacturing, even the most rigorous cleaning can offer only a temporary solution. Problems soon return upon handling, or exposure to foul atmospheres, and high humidity. Some additional means must be sought to stabilize circuit behavior, such as conformal…