Sega Game Gear Power supply

Here is a power supply circuit for sega game gear for the additional collection of your circuit. For a more complete explanation can be found on the website http://hardware.speccy.org.
Sega power supply circuit
Note: The value of the supplies provided by this sega power supply circuit, only take from the game gear and can not measure the value of the original circuit.

MB3775 is a switching regulator with two independent outputs. With one of the +35 v output for backlighting on Game Gear. With others, +5 v output is needed to feed the chip. Reference signal which makes MB3775 (1.25V) is also used but do not know its function.

The diode D1 (SM label 3F), which prevents current to pass if we get a polarized power in reverse.


Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.


Tags: power supply circuit for sega game gear Sega Game Gear Power supply sega power supply sega power supply circuit

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