Chapter 1
Overview
Cautions for Circuit Setup I - 39
1.6.4 Power Supply Circuit
Cautions for Power Circuit Design
The MOS logic such a microcomputer is high-speed and high-density. So, the power circuit should be designed,
taking into consideration of AC line noise, ripple caused by LED driver.
An example of a circuit with V
DD30
(emitter follower type) is shown below.
Figure:1.6.7 Power Circuit Example (emitter follower type)
VSS
Microcomputer
VDD30
+
Set the noise filter capacitors
closer to microcomputer power pins.
For noise filterring
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