The gain-frequency curve of an LLC resonant converter is a graphical guide displaying both the gain and operating frequency. At resonance frequency, the gain is certain to be unity. However, at above or below the resonance, the gain is no longer unity. In this article we will cover how LLC converter gain-frequency curve works or how to interpret it and
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You may be wondering why LLC resonant converter gain is unity. How it happens and how to mathematically derive it. If you have these questions, then you are on the right page. I will be sharing to you the answers to these questions. In the previous topic, I discussed the equivalent AC circuit of an LLC resonant converter. Read How
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Buck converter can be synchronous or non-synchronous type. The former uses a MOSFET (or BJT, IGBT) in place of the buck diode. Basically, there are two switches in synchronous type. On the other hand, the latter uses a switch and a diode combination. This is simpler and cheaper than the former since there is only a single MOSFET to control.
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Junction to case thermal resistance is measured from the junction to the case. This is mostly specified for power semiconductor devices. This article will teach how to use it and when to use it. Junction to Case Thermal Resistance Symbol and Units Some datasheets use RthJC while others use RθJC. They are referring to the same parameter. The units used
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Designing DCDC converter may not any more difficult by the help of online tutorials, simulation software and applications notes. However, the task will not end on the design. Checking if the design is working great is another challenge. Here is the step by step guide on how to test and troubleshoot DCDC converter. How to Test and Troubleshoot DCDC Converter
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Charging is not a new technology. It is widely used in cell phones, gadgets, laptops and more. Nowadays, it is widely used in the vehicle industry. The conventional way of powering our cars is through petroleum products (gasoline or diesel). However, with the advancement of technologies, cars are now being powered by electricity. Common Terms Used in EV Charging EVSE
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A fuse is a component used to protect against short circuits. It is a safety feature thus needs to be selected correctly. Below are 8 key points on how to select a fuse. 1. How to Select a Fuse – Starts by Defining the Normal Operating Current The part used in this article is from Littelfuse. Littelfuse is offering very
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Circuit design is a combination of technical knowledge and understanding to each device parameters. Each device parameters are defined in the datasheet. Therefore, knowing how to read MOSFET datasheet is a must in circuits involving MOSFETs. In this another article, in order to explain the ideas clearly, let us use an actual MOSFET part from Infineon. The parts number is IGLR60R190D1XUMA1
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Diode is very important integral part of a buck converter. It is very popular than using a switch in the same location. A diode does not need a control mechanism while a switch needs. A diode is cheaper than a switch considering there is an added control mechanism. Here are the guides on how to select a buck converter diode.
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The transistor referred here is the bipolar junction transistor or BJT. Here is the complete guide on how to select a transistor. If you follow these, you can assure a rock solid design. 12 Key Items on How to Select a Transistor The transistor part used in this article is from Diodes Incorporated. They are offering great options for your
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