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Understanding MOSFET Turn-ON Process

While designing MOSFET based circuits you might have wondered what is the correct way of turning ON a MOSFET? Or simply what is the minimum voltage that should be applied across gate/source of the device to switch it ON perfectly? Although for many digital systems this might not be an issue, 5V systems such as … Read moreUnderstanding MOSFET Turn-ON Process

Transfer Characteristics

We know that for a bipolar junction transistor (BJT), the output collector current IC and the control input base current IB are related by the parameter beta, which is assumed to be constant for an analysis. Referring to the equation below, we find a linear relationship existing between IC and IB. If we make the … Read moreTransfer Characteristics

MOSFETs – Enhancement-Type, Depletion-Type

Two main types of FETs that presently exist are: JFETs and MOSFETs. MOSFETs can be further classified into depletion type and enhancement type. Both these types define the fundamental mode of operation of MOSFETs, while the term MOSFET itself is the abbreviation of metal-oxide-semiconductor-field-effect transistor. Due to the fact that the two types have different … Read moreMOSFETs – Enhancement-Type, Depletion-Type

Bug Detector Circuit – RF Sniffer Circuit

A bug detector is a device that detects hidden wireless electronic devices such as wireless microphones, spy cameras, Wi-Fi devices, GPS trackers or any gadget that emits some kind of radio frequency (RF). The proposed design can be specifically used as: Wi-Fi Signal Detector Circuit FM Transmitter Signal Detector Circuit Wi-Fi Spy Camera Detector Circuit … Read moreBug Detector Circuit – RF Sniffer Circuit

Darlington Transistor Calculations

Darlington transistor is a well known and popular connection using a pair of bipolar transistor junction transistor (BJT), designed for operating like an unified “superbeta” transistor. The following diagram shows the details of the connection. Definition A Darlington transistor can be defined as a connection between two BJTs that allows them to form a single … Read moreDarlington Transistor Calculations

CMOS IC LMC555 Datasheet – Works with 1.5 V Supply

IC 555 CMOS Version

In this post we study the datasheet, pinout, and technical specifications of the IC LMC555 which is a CMOS version of the standard IC 555. The IC is equipped with many outstanding features, the most amazing being its minimum supply range which is down to 1.5V. Meaning now you have an IC 555 which can … Read moreCMOS IC LMC555 Datasheet – Works with 1.5 V Supply

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