Digital/Analog Power Supplies; Dc Gate Driver Power Supplies - Epson S1D13706 Technical Manual

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Epson Research and Development

Vancouver Design Center

2.1.2 Digital/Analog Power Supplies

Connecting to the Sharp HR-TFT Panels

Issue Date: 01/02/23

The digital power supply (VSHD) must be connected to a 3.3V supply. The analog power

supply (VSHA) must be connected to a 5.0V supply.

The gate driver high level power supply (V

) have typical values of +15V and -15V respectively. These power supplies can be

provided by a Linear Technology high efficiency switching regulator (LT1172). The two

power supplies can be adjusted through their allowable ranges using the potentiometer

The gate driver logic high power supply (V

voltage of -11.7V can be supplied from V

necessary voltage change.

Figure 2-2: "Panel Gate Driver DC Power Supplies" shows the schematic for V

Figure 2-2: Panel Gate Driver DC Power Supplies

) and the gate driver logic low power supply

) is defined as V

using a 3.3V zener diode which provides the

SCHOTTKY 1A Vf=0.5V

+ VSHD. The typical V

X31B-G-011-04

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