Nearly every electronic device today relies on a battery as a power source. The dc-dc converter plays a significant role in maintaining the working time of the battery. A buck-boost dc-dc converter is an ideal choice for the most efficient and reliable battery range. The buck-boost converter provides the regulated voltage in the Lithium (Li-ion)…

In many applications, there’s a need for a constant voltage source. However, there are more constant current source applications than constant voltage sources. Most power supplies are voltage sources, including batteries and bench power.  A constant current source can be used anywhere a fixed current is required. A resistor can also be used, but the…

In this article, we’ll explain how an inverter or emergency bulb operates. An inverter bulb is an emergency LED bulb. However, the term is confusing because there’s no conversion process (from dc to ac or vice versa) in the circuits where these bulbs are applied. The technology lets the bulbs automatically light during a power…

Inductors are simple components in electronic devices that perform tasks like cleaning up electrical signals, helping with timing, and managing power. They store energy in magnetic fields when electricity flows through them and releases them back into the circuit. Inductors resist sudden changes in the flow of electricity, pushing back “spikes” by creating an electrical…

An ac-dc converter is commonly used in many devices. Also called a rectifier, it converts alternating current (AC) to direct current (DC). Most electronic devices, such as computers, smartphones, and electronic circuits, operate on DC power. However, there are different ways to convert AC into DC power (as discussed in the previous AC-to-DC conversion article). For…

CUI Inc., a Bel group company, announced the release of its PTP15 Series — a 15 W, 5 Pin DIP isolated DC-DC converter, specialized for medical instrumentation and home medical supplies. Offering 4000 Vac isolation or 5600 Vdc isolation with a 2:1 input voltage range, the series is compliant with the IEC/EN 60601-1 and EN…

STMicroelectronics has extended its high-voltage wide-bandgap power-converter family by adding the VIPerGaN100 and VIPerGaN65 for single-switch quasi-resonant (QR) flyback converters up to 100 and 65W. The compact and highly integrated design targets switched-mode power supplies (SMPS) for USB-PD chargers, home appliances, smart-building controllers, lighting, air conditioning, smart metering, and other industrial applications. Each device integrates a pulse-width…

Diodes Incorporated has announced a further addition to its family of automotive-compliant DC-DC converters. The DIODES’ AP64060Q is a 600mA synchronous buck-converter device with an input voltage range that covers 4.5 to 40V. It incorporates a 600mΩ high-side power MOSFET plus a 300mΩ low-side power MOSFET so that high-efficiency step-down conversion (reaching 90%) can be…

Diodes Incorporated has introduced a high-efficiency synchronous boost converter. The DIODES AP72250 is targeted at step-up conversion in consumer and industrial applications where small form factors are a priority. These include battery-powered devices, USB power-supply units, power banks, supercapacitor charging equipment, and metering systems. The AP72250 supports a 900kHz switching frequency with a 20µA quiescent…

Contemporary server, communication, and network storage applications struggle to minimize power losses and solution size. The rapidly changing market also requires system solution providers to address market needs faster than usual. To address these issues, Infineon Technologies has introduced highly efficient and reliable step-down DC-DC converter modules. Adding to the point-of-load (POL) family, these modules…

STMicroelectronics‘ RHRDAC121 radiation-hardened, digital-to-analog converter (DAC) operates down to 2.5V for use in modern, low-power system designs that older 3.3V parts cannot support. Consuming just 0.6mW at its maximum speed and supply voltage, the 12-bit 1Msps successive approximation register (SAR) DAC helps reduce size, weight, and power (SWaP) in next-generation satellites. Typically used in circuits…

STMicroelectronics‘ new VIPerGaN50 simplifies building single-switch flyback converters up to 50 Watts and integrates a 650V gallium-nitride (GaN) power transistor for superior energy efficiency and miniaturization. With its single-switch topology, high integration, current-sensing, and protection circuitry built-in, the VIPerGaN50 comes in a compact and low-cost 5 x 6mm package. The speed of the integrated GaN transistor…

Texas Instruments (TI) has introduced the smallest 24-bit wideband analog-to-digital converter (ADC), which delivers signal-measurement precision at wider bandwidths than competing ADCs. The ADS127L11, the newest product in TI’s portfolio of precision wideband ADCs, achieves ultra-precise data acquisition in a 50-percent smaller package — significantly optimizing power consumption, resolution, and measurement bandwidth for a range…

Diodes Incorporated is introducing the PAM8965 class-D stereo, audio power amplifier with an integrated synchronous boost converter. This high-efficiency device is targeted for use in AI-enabled speaker systems and portable musical instruments where elevated output power, extended battery life, and compact construction are all key requirements. Running off a 2.8 to 8.5V supply, the PAM8965…

The VN9D30Q100F and VN9D5D20FN from STMicroelectronics introduce a new generation of automotive intelligent switches — the first in the market with digital current sensing among the fully digital on-chip diagnostic features. Designed for high-side connection in applications powered from a 12V battery, the drivers simplify the hardware and software design of electronic control units (ECUs)…

STMicroelectronics, a global semiconductor, is easing the design of competitively priced and power-efficient wireless equipment for applications like smart buildings, smart industry, and smart infrastructure by introducing new development tools and software for STM32WB wireless microcontrollers (MCUs). ST’s highly integrated STM32WB contains a 2.4GHz radio, Arm Cortex-M4, and Cortex-M0+ MCU on the same chip, which eliminates several…

Maxim Integrated Products, Inc. has introduced the four-channel, low-voltage MAX25512, automotive LED backlight driver with integrated boost converter. It’s the only integrated solution that retains full, constant brightness of in-car displays even during extreme cold crank conditions down to 3V input voltage. The single-chip LED driver eliminates an external MOSFET and current-sense resistor, integrating I2C…

ROHM is introducing a new, AC/DC converter ICs with a built-in 1700V SiC MOSFET, BM2SC12xFP2-LBZ in the TO 263-7L package. It’s optimized for industrial applications, focusing on auxiliary power supplies for street lamps, commercial air-conditioning systems, general-purpose inverters, and AC servos drives. An auxiliary power supply is an essential and vital part of industrial applications…

Renesas Electronics Corporation, a supplier of advanced semiconductor solutions, has unveiled a family of new 700V buck regulators that offers designers several advantages. The new RAA2230XX devices deliver superior power consumption, noise and EMI suppression, as well as reduced overall system cost. They’re ideal for a wide range of applications, including home appliances, sensing systems…