This book is based on actual cases of power supply troubles that were contacted by Macnica 's technical staff. The content does not use mathematical formulas so that you can easily understand technical knowledge and know-how. I hope you find this helpful as a hint on how to avoid power supply problems.
|
title |
content |
| Part 1: There is a sound coming from the DC/DC converter! | About the power supply circuit that operates as a negative resistance |
| The second culprit is long wiring? | Trouble when supplying power with long wiring to a power circuit with only ceramic capacitors |
| 3rd The output voltage becomes unstable when the input voltage is increased... | Contents related to Minimum On Time provisions |
| 4th Repeated on/off, the power won't turn on...! ? | Power supply IC that does not start up in pre-bias state |
| Abnormal power output in the 5th low temperature test! ! | Malfunction caused by cooling spray |
| The power supply that repeats on and off at the time of the 6th start! | Malfunction due to incorrect setting of soft start |
| 7th IC burned out and solder disappeared! ? | Examples of defects due to through-hole design on E-PAD |
| 8th through hole, how many do you need? ? | Defects caused by the number of through-holes and placement of the output capacitor |
| Part 9 What is correct component placement? ~Tragedy caused by wrong arrangement~ | Oscillation caused by layout and placement of input capacitors |
| 10th Why? ? Mystery of bugs that occur only in specific applications. . . | Examples of failures caused by the way the system was installed |
| 11th Changing the power supply IC, wait a minute! ~ Countermeasures against Digital Circuit Malfunctions Caused by Power Supply Noise ~ | Problem examples and countermeasures due to power supply switching noise and board layout |
| No.12Is it okay if I use the lead wire for evaluation? | Examples of defects caused by the influence of lead wires (inductance) |
| Find the cause of the 13th overcurrent limit occurrence! | Various causes of overcurrent protection in power circuits |
| 14th Huh? How high is the wire resistance? | Effects of 0Ω resistance, wiring, and through holes |
| 15thDoes a filter increase power supply noise? ! | A case where the anti-resonance point was adversely affected when a bead filter was inserted |
| Part 16What happens to the output when power supply modules are connected in parallel? | Problems when power supplies are easily operated in parallel |
| 17th Voltage accuracy of ±30mV is impossible with 1% accuracy resistor, right? | The importance of actually performing calculations without making assumptions |
| The 18th important thing that the swallow taught me | It's about the swallow that comes every year. |
| The 19th Schematic is not enough! Do not forget ○○ check! | On the importance of layout |
| What is the 20th? The Mystery of Deprecated Power Output Pins | Examples of failures when using the IC's internal regulator |
| Vol.21 Voltage leaks out from the I/O pin without permission! |
Reasons why voltage leaks from the I/O pins and power supply terminals of digital ICs such as FPGAs |
| 22nd The linear regulator has more output noise than the switching regulator |
Influence of load response characteristics of linear regulator |
| The 23rd power supply sequence is not necessary? |
The Importance of Power Sequencing Now and Then |
| Part 24 Is opening too many vias counterproductive? Gotchas around GND |
Precautions when making power supply/GND through holes and vias |
| 25th Stress causes a problem! ? |
The story of ESD |
| 26th What is fast response of power supply for FPGA? | About the load response characteristics of the power supply |
| No.27 Size is more important than constant setting! Capacitor placement etc. | Condenser arrangement |
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