Power Supply Board M1353-66502 | Philips M1351A, M1353A manual

Power Supply Board (M1353-66502)

The Power Supply Board operates as a linear regulated power supply with rectifier, capacitor and regulator. It generates the following voltages:

Regulated dc: ± 12V, +5V and +24V

Unregulated dc: +7V to +12V

±12V and +5V have an electronic short circuit current limit. The +24V dc regulator works independently from the others. The +24V are used for the thermal printhead fed through the recorder IF-board. The internal +2.5V reference voltage is generated from the +24V, so if the 24V section is inoperative, the rest of the power supply won’t work. The -12V regulator also needs the regulated +5V to work correctly. The reset (open collector output) is active low, when either the +5V is lower than +4.6V or the +24V is lower than +14.8V. If the +5V is higher than 6.2V (this can be caused by any failure of the power supply or the other boards) the over-voltage protection is triggered and pulls down the voltage to about 3.4V. This state can only be relieved by switching the monitor off and on (if the failure isn’t still remaining).

Chapter 6 Theory of Operation

M1353A, M1351A specifications

Philips M1351A and M1353A are advanced medical monitoring devices designed to enhance patient care in various healthcare settings. These monitors are widely recognized for their precision, reliability, and user-friendly interface, making them essential tools for clinicians and healthcare providers.

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In summary, the Philips M1351A and M1353A monitors serve as essential tools in contemporary medical practice, offering comprehensive monitoring capabilities, advanced technologies, and a user-centric design. These features collectively contribute to improved patient outcomes and enhanced overall healthcare delivery.

Philips M1351A, M1353A manual Power Supply Board M1353-66502

Models: M1353A M1351A

Power Supply Board (M1353-66502)

M1353A, M1351A specifications