Passive Components

Capacitors for next-gen EV charger designs

28 February 2023 Passive Components

The EV charger market has seen a marked upswing in the last few years and shows no sign of slowly down as the world embraces the automotive electrification taking place. Cornell Dubilier Electronics (CDE) has responded to the rapidly growing demand for high-performance DC-link capacitors for these EV chargers.

The latest EV charger designs are pushing the envelope with respect to higher voltage and current handling in an effort to reduce charging times. The design of these level 3 chargers is a balancing act to reduce the unwanted circuit harmonics that cause significant heating.

The capacitors available for these applications include screw terminal and snap-in aluminium electrolytics, and polypropylene film capacitors that are either air- or water-cooled, and with oil-impregnated or dry-epoxy construction. The metal or plastic housings include multiple terminal options.

CDE offers high capacitance values with low inductance of less than 5 nH, high ripple current, self-healing, and low loss dielectrics. Voltage ranges on these capacitors start at 450 V and move up to 3800 V  DC. With a typical life expectancy of 200 000 hours and an operating temperature range of -40 to 135°C, the range is well-suited to all high-performance charging systems.


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Power modules enable 15% weight reduction in race cars
Future Electronics Power Electronics / Power Management
Chosen for their small and lightweight characteristics, the Vicor modules efficiently step down the high-voltage accumulator’s power from 400 – 600 V to 27 – 38 V.

Long-range passive infrared motion sensor
Future Electronics Passive Components
Panasonic Industry (PaPIRs) recently introduced he world’s most compact long-range passive infrared motion sensor, for installation heights of up to 15 metres.

Isolated solid state relay
Altron Arrow Passive Components
The ISO808, ISO808-1 (PowerSO-36) and ISO808Q, ISO808Q-1 (TFQFPN32) are galvanic isolated eight-channel drivers featuring a low supply current.

Low-profile power inductors
RS South Africa Passive Components
TDK Corporation has announced the introduction of its new PLEA85 series of high-efficiency power inductors developed for battery-powered wearables and other devices.

Miniature capacitor for automotive applications
Avnet Abacus Passive Components
Murata has released its LLC series of multi-layer ceramic capacitors for automotive applications, that feature a reversed termination for low ESL.

Sealed tantalum capacitors
Electrocomp Passive Components
With an operating temperature range of -55 to 125°C, with voltage derating, these capacitors have been designed especially for avionics and aerospace applications.

Bringing performance and security to BLE applications
Future Electronics Telecoms, Datacoms, Wireless, IoT
STMicroelectronics’ STM32WBA 32-bit wireless series brings designers the performance, efficiency, and security required for Bluetooth Low Energy 5.3-enabled applications.

Double metallised polypropylene capacitors
Future Electronics Passive Components
The Electrocube 985B series offers high-frequency operation, high current and low ESR in a miniature package.

New series of chip-type capacitors
Electrocomp Passive Components
Panasonic Industries’ SMT capacitor series all benefit from the longest lifetime plus the lowest ESR values currently available.

32-bit MCU with embedded security
Future Electronics DSP, Micros & Memory
The highly configurable PIC32CZ CA microcontrollers are available with a 300 MHz Arm Cortex-M7 processor and an embedded Hardware Security Module.