Load switch with self-resetting circuit breaker
https://www.electronics-lab.com/load-switch-self-resetting-circuit-breaker/
Anthony Smith has designed a simple load switch using two transistors and some resistors. The simple current-limiting load switch shown in Figure 1 will be familiar to most readers. In this circuit, a high level signal applied to the input switches on MOSFET Q2, which energizes the load. The load current is limited by negative […]
The new 800V CoolMOS MOSFET from Infineon
https://www.electronics-lab.com/new-800v-coolmos-mosfet-infineon/
Thomas Scherer @ elektormagazine.com shares the news about a CoolMOS Mosfet from Infineon. The latest 800V CoolMOS P7 800V MOSFET from Infineon is based on their superjunction technology. The device is available in twelve classes of RDS(on) beginning with 0.28 Ω and in six package options. It is particularly suited to high voltage switching applications, flyback […]
FemtoFET – 20V 500mA 0.6×0.7mm MOSFET From TI
https://www.electronics-lab.com/femtofet-20v-500ma-0-6mm-0-7mm-mosfet-ti/
Texas Instruments “TI” recently announced FemtoFET series. There are N-channel MOSFETS like CSD15380F3 and P-channel MOSFETS like CSD25480F3 and CSD23280F3 in this series. These transistors are SMD (Surface Mount Devices) available in a very small package, the land grid array (LGA) package. To explore this family we will highlight the FemotoFET MOSFET CSD15380F3. It has […]
App note: Solid-State Relays
https://www.electronics-lab.com/app-note-solid-state-relays/
Solid-state relays introduction from Vishay, (PDF) MOSFET SSRs feature an optocoupler construction, but have a pair of MOSFETs on the output instead of a phototransistor. A pair of source-coupled MOSFETs emulate an electromechanical relay by providing bidirectional switch capability and a linear contact. No output power supply is required. App note: Solid-State Relays – [Link]
High Current Discrete Half-Bridge Based on IR2104 or IR2101
https://www.electronics-lab.com/high-current-discrete-half-bridge-based-ir2104-ir2101/
This is a discrete Half-bridge driver based on IR2104 gate driver IC and low impedance high current N channel IRFP4368 MOSFETS. The IR2104 is a high voltage, high speed power MOSFET driver with independent high and low side referenced output channels. HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is […]
DIY 1GHz Active Probe For Under 20$
https://www.electronics-lab.com/diy-1ghz-active-probe-20/
thirschbuechler @ instructables.com shows us how to build a 1GHz active probe using BF998 dual-gate MOSFET and some other RF components. This Instructable will show you how to build a 1GHz* Fet-based Active Probe, the Fetprobe, for about 10$*, provided you have access to an electronics lab. It is based on an Elektor-magazine article (see […]
LTC3895 – Step-down controller handles 150 V
https://www.electronics-lab.com/step-down-controller-handles-150-v/
Linear Technology Corporation announces the LTC3895 , a high voltage non-isolated synchronous step-down switching regulator controller that drives an all N-channel MOSFET power stage. Its 4V to 140V (150V abs max) input voltage range is designed to operate from a high input voltage source or from an input that has high voltage surges, eliminating the […]
150V DC/DC inverting controller: single inductor, ground-referenced control
https://www.electronics-lab.com/150v-dcdc-inverting-controller-single-inductor-ground-referenced-control/
LTC3896 is a high voltage inverting switching regulator controller that drives an all N-channel synchronous power MOSFET stage. Most low to medium power inverting DC/DC converters use a coupled inductor or transformer: this device uses only a single inductor. The chip converts a 4V to (150V – |VOUT‾|) positive input voltage to a regulated negative […]
150V synchronous step-down DC/DC includes surge protection
https://www.electronics-lab.com/150v-synchronous-step-dcdc-includes-surge-protection/
Linear Technology designed the LTC3895 to be a non-isolated DC/DC controller with a high input voltage capability that can eliminate the need for surge suppression and operate continuously with a high input voltage. The synchronous step-down switching regulator controller drives an all N-channel MOSFET power stage. Its 4V to 140V (150V abs. Max.) input voltage […]
Battery-charging considerations for low-power applications [PDF]
https://www.electronics-lab.com/battery-charging-considerations-low-power-applications/
By Tahar Allag: The wearable and personal-electronics industries are booming. Devices in this market vary wildly by application and use. These multifunction devices are designed to help people in their daily activities and make their lives comfortable. They can be found in different shapes, colors, sizes, and safety measures. They may differ significantly from each […]