|
|
|
Flyback regulator with multi-mode control
31 January 2018, Power Electronics / Power Management
The HF500-30 from Monolithic Power Systems is a fixed-frequency, current-mode regulator with built-in slope compensation. It combines a 700 V MOSFET and a full-featured controller into one chip for a low-power, offline, flyback, switch-mode power supply.
At medium and heavy loads, the regulator works in a fixed frequency with frequency jittering. Jittering helps reduce EMI energy on the switching frequency and its harmonics. During a light-load condition, the regulator freezes the peak current and reduces its switching frequency to 25 kHz to offer excellent efficiency. At very light loads, the regulator enters burst mode to achieve low standby power consumption.
Full protection features include brown-in and brown-out, VCC under-voltage lockout, overload protection, short circuit protection, input over-voltage protection, VCC over-voltage protection, and over-temperature protection. The HF500-30 features over-power line compensation to ensure that the overload protection point is independent of the input voltage.
The device is available in a PDIP8-7B package. Applications include the likes of power supplies for home appliances, set-top boxes, standby and auxiliary power, and power adaptors. For more information contact NuVision Electronics, +27 (0)11 608 0144, gdeklerk@nuvisionelec.co.za, www.nuvisionelec.com |
|
|
|
| Share: |
 |
Via email client |
 |
 |
 |
 |
print |
|
|
|
|
|
Further reading:
- 6U VPX power supply
23 October 2019, Conical Technologies, Power Electronics / Power Management
SynQor announced its new universal 85 to 264 Vrms AC-input VPX power supply for critical military, aerospace and shipboard applications. This 6U VPX power supply, designed to meet VITA 46 standards, allows ...
- Automotive H-bridge driver
23 October 2019, Altron Arrow, Power Electronics / Power Management
The TLE985x H-bridge MOSFET driver IC product family from Infineon Technologies is an ideal fit for compact and cost-effective motor control solutions. It targets automotive applications such as sunroof, ...
- 40 Watt DC-DC converters for industrial use
23 October 2019, Conical Technologies, Power Electronics / Power Management
Traco Power announced the release of its new TEN 40WEI range of industrial converters. Due to a new design approach, it offers a cost-efficient solution with no concession on quality or reliability as ...
- Battery design trends for IoT
23 October 2019, Avnet South Africa, Power Electronics / Power Management
Ultimately, the choice of battery for any application in the Internet of Things will depend on the power profile of the application, in combination with any environmental factors such as temperature.
- Points to consider when running power supplies from portable generators
23 October 2019, Accutronics, Power Electronics / Power Management
Manufacturers of end systems should specify what class of generator their products should be used with, and should question what class was used if they do see equipment failures.
- Developing opportunities around ‘hybrid’ renewable energy power plants
23 October 2019, Forbatt SA, Power Electronics / Power Management
If we let our imaginations run wild in the local context – and imagine the possibilities that come from having the cheapest energy in the world – the creative minds amongst us could have a field day.
- High-voltage power supplies
23 October 2019, Vepac Electronics, Power Electronics / Power Management
The XP Emco range of high-voltage power supplies meets a wide range of high-performance demands. It includes a broad range of DC-DC converter modules with output voltages from 100 V to 10 kV in both proportional ...
- 5 Watt AC-DC converter
23 October 2019, Avnet South Africa, Power Electronics / Power Management
Aimtec’s new AMEL5-277NZ is an AC-DC converter which has been designed to offer greater economies of scale due to greater production automation, leading to improved reliability and performance. The product ...
- USB Type-C power controllers
23 October 2019, Avnet South Africa, Power Electronics / Power Management
Microchip announced two new solutions that simplify USB Type-C PD (Powered Device) designs to remove the traditional complexity and high costs associated with implementing USB Type-C in a range of applications.
...
- 0,6 A and 1 A point-of-load converters
23 October 2019, Conical Technologies, Power Electronics / Power Management
Traco Power announced a new addition to its TSR-WI range: the TSR-WI line is a set of non-isolated point-of-load (POL) converter series with an ultra-wide 8:1 input voltage range, which come in standard ...
- 19-inch compatible power supply units
23 October 2019, Actum Electronics, Power Electronics / Power Management
nVent Schroff offers pluggable, switch-mode power supplies and a variety of open-frame power supplies for open standards. The linear regulator range caters for extremely sensitive electronics applications ...
- Step-down power modules
23 October 2019, Power Electronics / Power Management
The MagI3C-VDMM (Variable Step Down Micro Module) power module family from Würth Elektronik is being supplemented by more powerful 1 A and 1,2 A versions. The input voltage range (from 2,5 to 5,5 V) covers ...
|
|
