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  • What is an Integrated Circuit (IC)?

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    John Mulindi
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    An integrated circuit (IC) is a circuit in which components such as diodes, transistors, resistors, capacitors, and so forth are automatically made part of a small semiconductor chip. In other words, an IC is a complete electronic circuit in which both active and passive components are assembled on a small chip of silicon. When we…

  • What to Expect from PCB Assembly Services in China

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    Eng & Tech Editorial Staff
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    The importance of printed circuit board (PCB) technology has escalated throughout the years with the integration of the Internet of Things (IoT), wireless interfaces, automation and big data analytics in many applications. The global competitiveness of China in the electronics landscape has also leapt to becoming the leader in export and manufacturing of printed circuit…

  • Electron/Vacuum Tubes vs. Semiconductor Devices

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    John Mulindi
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    Electronic circuitry has undergone tremendous changes since the advancement of a triode, a type of electron tube that consists of three elements namely filament, grid and plate. In a triode, the amount of current from the cathode to the plate (i.e. controlled current is a function of both the grid to cathode voltage (the controlling…

  • Voltage-Controlled Attenuator: Function, Features & Application

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    John Mulindi
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    Function of a Voltage-Controlled Attenuator The function of a voltage-controlled attenuator is to produce an output signal vo(t) that is a variable fraction of the ac input signal vin(t). The process of reduction of the amplitude of a signal is called attenuation. Features of a Voltage-Controlled Attenuator Let’s consider a circuit of a voltage-controlled attenuator…

  • The Manufacturing Process Behind 6 Layers PCB Board

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    Eng & Tech Editorial Staff
    in

    PCBs are a vital part of modern electronics, forming the core for links and attachment of electronic components. 6-layer PCBs form part of almost all complex devices like mobiles, computers, and sophisticated industrial equipment. This article discusses manufacturing a 6-layer PCB. Generally, it will be the careful steps one has to take in the entire…

  • Three-Phase Diode Bridge Rectifier: Function & Operation

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    John Mulindi
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    In many high-powered applications, three-phase voltages need to be rectified to give rise to a single DC supply; such rectification can be accomplished using an extension of the bridge rectifier such as the three-phase diode bridge rectifier. Let’s consider the balanced three-phase circuit shown in Figure 1.0 below; the three-phase wye-connected source is connected to…

  • Insulated Gate Bipolar Transistor (IGBT) – Structure, Operation & Applications

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    John Mulindi
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    IGBT is a voltage controlled device. It has high input impedance like a MOSFET and low on-state conduction losses like a BJT. In other words, this power device combines the voltage control of the MOSFET gate with the superior conduction characteristics of the bipolar device. Nonetheless, the IGBT utilizes injected-charge modulation in the base region…

  • What are Printed circuit boards (PCBs)?

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    Eng & Tech Editorial Staff
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    Introduction Printed Circuit Boards (PCBs) are the important components in electronic devices that offer mechanical support and electrical connections between miscellaneous components. They are made of an insulation substance with a conduct pattern that helps in the stream of electricity. PCBs act as the backbone of electronic circuits, enabling efficient and organized connections.   What are…

  • How Artificial Intelligence is Revolutionizing PCBs

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    Eng & Tech Editorial Staff
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    The intersection of artificial intelligence (AI) and printed circuit board (PCB) technology marks a pivotal shift in the electronics industry. This fusion not only heralds a new era of innovation but also redefines the boundaries of what’s possible in electronics design and manufacturing. In this deep-dive analysis, we’ll explore how AI is revolutionizing PCBs, transforming…

  • Optothyristors: Features & Principle of Operation

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    John Mulindi
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    Silicon Controlled Rectifiers (SCRs), Triacs and other solid-state devices used for switching larger voltages and currents ON and OFF are referred to as thyristors. Thyristors control switching in an ON-OFF way, in the same way to a light switch which is different from a transistor that can vary the amount of current in its emitter-collector…