PNP transistors
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Ultra-Low VCE(sat) NPN and PNP Bipolar Transistors from Diodes Incorporated Maximize Power Density and Efficiency in Compact Automotive Designs Diodes Incorporated (Diodes) (Nasdaq: DIOD) today announces an expansion of its automotive-compliant* bipolar transistor portfolio with the introduction of the DXTN/P 78Q & 80Q series. These ultra-low VCE(sat) NPN and PNP transistors deliver industry-leading conduction efficiency and thermal performance, optimized for demanding automotive power switching and control. The twelve high… |
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Build a 555 Timer IC based Simple Push-on Push-off Circuit If you are a hobbyist or have keen interest in electronics circuits, you must be familiar with 555 timer IC and its three popular circuits - Monostable multivibrator, Astable multivibrator, and Bistable multivibrator. Guess what, we can even use this IC as a switch. This is the type of button that holds its state i.e. on the first press, it switches… |
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Design a Simple Constant Current Sink Circuit using Op-Amp Current Source and Current sink are two major terms used in electronics design, these two terms dictate how much current can leave or enter a terminal. For example, the sink and source current of a typical 8051 Microcontroller digital output pin is 1.6mA and 60uA respectively. Meaning the pin can deliver (source) up to 60uA when made High and can receive (sink) up to 1.6mA… |
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Designing an AND Gate using Transistors As many of us know, an Integrated Circuit or IC is a combination of many small circuits in a small package which together perform a common task. An Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly, a Flip-Flop can be built by using a combination of Logic Gates and… |
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Bipolar Transistors with Smaller Form Factor (3.3mm X 3.3mm) and Increased Power Density Diodes Incorporated extends its transistor family with release of NPN and PNP power bipolar transistors in a much smaller form factor of 3.3mm X 3.3mm. The transistors enable higher power density designs in gate-driving power MOSFET’s and IGBTs, Linear DC-DC step-down regulators, PNP LDOs and load switch circuits which helps in applications which require 100V and 3A… |
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Soft Start Circuit for Power Supply A Soft Start Circuit prevents the sudden current flow in the circuit during the start. It slows down the rate of rising output voltage by minimizing the excess current flow during the start. It is useful to protect the devices or electronic components from the damage caused by instantaneous high input current. Some components which are current limited and having poor load… |
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Overvoltage Protection Circuit Protection circuits, like reverse polarity protection, short-circuit protection, and over/under voltage protection, are used to protect any electronic appliance or circuit from any sudden mishap. Generally fuse or MCB is used for overvoltage protection. Here in this circuit, we will build a simple overvoltage protection circuit without using a fuse. … |
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Short-Circuit Protection Circuit Short circuit protection is an unintended connection between two terminals which are supplying power to the load. It can happen both in an AC and a DC circuit. If it is an AC supply, then a short circuit can trip the power supply of the whole area, but there are fuses and overload protection circuits at many levels, from the power station to the house. And if it is a DC… |
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Push-Pull Amplifier Circuit Circuit schematics are crucial for electronics engineers to understand. For the majority of real-world applications, Class A amplifiers offer the lowest distortion, Class B amplifiers the most efficiency, and Class AB amplifiers the best resolution. The particular needs for power, distortion, and efficiency will determine the choice. A push-pull… |
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Darlington Transistor Pair Darlington transistor is invented in 1953, by a US electrical engineer and inventor, Sidney Darlington. Darlington transistor uses two standard BJT (Bi-polar junction transistor) transistors which are connected together. Darlington transistor connected in a configuration where one of transistor’s emitter provides biased current to the other transistor’s base. … |
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PNP Transistors The first bipolar junction transistor was invented in 1947 at Bell laboratories. “Two polarities”is abbreviated as bipolar, hence the name Bipolar junction transistor. BJT is a three terminal device with Collector (C), Base (B) and Emitter (E). Identifying the terminals of a transistor requires the pin diagram of a particular BJT part. It will be available in the datasheet.… |
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Transistor Switching Circuit: Examples of How Transistor Acts as a Switch Transistors are made up of semiconductor material which is most commonly used for amplification or switching purpose, although they can also be used for controlling the flow of voltage and current. Not all but most of the electronic devices contain one or more types of transistors. Some of the transistors placed individually or else generally in integrated circuits… |
