Application:

This custom made switched mode power supply is designed to supply the electronics of a coffee vending machine for the professional market. The application is characterized by 24/7 operation with high power demands for a short period of time. Furthermore, the application demands a remote on/off functionality of the main converter and a 5V auxiliary converter.

Model Description:

The power supply main converter provides a 24V and 30V DC output voltage and an auxiliary converter provides a 5V output voltage. The main converter is capable of delivering a peak output power of more than 5 times the nominal value. Besides this, the output power of the main converter is protected and has the ability to fold-back at very high load conditions without affecting the performance of the 5V auxiliary output.

I/O Interfaces:
The PSU is equipped with the following I/O interfaces; a main converter logic OK signal, a remote on/off function, a power fail signal and an output current sense signal, which is used to check the current drain from the customer’s electronics.

Protection Circuitry:
The unit is provided with a double protection circuitry to comply with LPS safety regulations.

Product Inquiries

Power Supply Highlights:

• 115 / 230Vac jumper selectable input.
• Three output voltages; +5Vdc, +24Vdc and +30Vdc
• High peak output power (360W) up to 3 seconds.
• Fully overload protected by means of fast acting high- and a time delayed low- trip level.
• Second 100W protection circuitry used to meet LPS safety requirements.
• Remote on/off functionality.
• Current sense output signal.
• Integrated Power Fail signal.
• Overvoltage protected within SELV range.
• CE marked.
• Safety: UL 60950, 60335
  Limited Power Source (LPS).

Mechanical construction:

The power supply is mounted in a special designed anti fluid drip housing, which consists out of an blank anodized bracket and top cover. Fixation of the unit’s sub-board is achieved by special top cover forming. Cooling is accomplished by means of free air convection. A popular choice of connectors has been made for easy and reliable in and output connections.

Dimensions:

Housing: – 180 × 94 × 55 mm