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Flow sensors don’t fail randomly — they fail when protection is an afterthought. ⚡
From ESD to power surges, learn how smart protection design keeps industrial, medical, and automation systems accurate, stable, and safe.
📘 One guide. Real-world cases. Proven component selection.
👉 Read the full protection manual now
https://medium.com/@yamy28508735/flow-sensor-protection-guide-from-principles-to-component-selection-engineers-can-simply-refer-to-905a6cec8415

🔗 𝗙𝗶𝗻𝗱 𝗼𝘂𝘁 𝗺𝗼𝗿𝗲:[en.leiditech.com]
𝗖𝗼𝗻𝘁𝗮𝗰𝘁 𝘂𝘀: sales16@leiditech.com

#FlowSensor #EMCProtection #ESDProtection #SurgeProtection #IndustrialAutomation

Combating KT148A voice chip burnout in charging pile apps? Pins 7 & 8 (SPK outputs) can fry from surge/EMI. Design tip: Add an LC filter (33uH inductor + 102 cap) on the output and use twisted-pair wiring for the speaker. This simple combo filters noise and reduces common-mode interference, ensuring long-term chip stability in tough environments. #KT148A #HardwareDesign #EmbeddedSystems #EMC #SurgeProtection #EVCharging #ElectronicsEngineering #Reliability

https://www.linkedin.com/pulse/kt148a-voice-chip-charging-pile-applications-burnout-issue-tsui-rfpfc

Practical Solution for KT148A Voice Chip Burnout in Harsh Environments

Hello everyone,

In EV charging pile applications, we've observed a issue with the KT148A voice chip: physical burnout of pins 7 and 8 (speaker outputs). Analysis points to surge interference from large charging currents as the primary culprit.

Here's a proven two-step solution to enhance robustness in your designs:
Step 1: Integrate an LC filter (33uH/200mA inductor + 102/1nF capacitor) at the speaker output to filter surge noise.
Step 2: Utilize twisted-pair wires for speaker connections to mitigate common-mode interference.

These simple yet effective measures significantly improve EMI resistance and prevent chip damage, ensuring reliable operation in challenging environments. Have you encountered similar issues? What protection strategies have you implemented?

Let's discuss in the comments!
https://lnkd.in/gYPbASpF
#HardwareDesign #EmbeddedSystems #PCBDesign #EMI #Reliability #KT148A #EngineeringSolutions

KT148A voice chip burning out in EV chargers? Pins 7 & 8 susceptible to surges. Fix: Add LC filter (33uH+102 cap) & use twisted-pair speaker wires. Boost reliability! #HardwareDesign #EMC #EVCharging #KT148A #Engineering

https://www.linkedin.com/pulse/kt148a-voice-chip-charging-pile-applications-burnout-issue-tsui-rfpfc

Enhancing KT148A Voice Chip Reliability in EV Charger Applications

In the demanding environment of electric vehicle (EV) charging piles, the KT148A voice chip can face significant challenges, particularly the burnout of pins 7 and 8 (speaker outputs) due to electrical surges and EMI from high charging currents.

To address this, we recommend two key design improvements:
1. Implement an LC Filter: Add a 33uH/200mA inductor and a 102 (1nF) capacitor in an 0805 package to the speaker output. This filter helps suppress surge noise and stabilizes the signal.
2. Use Twisted-Pair Wiring: For speaker connections, twisted-pair wires effectively reduce common-mode interference and enhance EMI immunity.

These protective measures are crucial for ensuring the long-term stability and durability of the KT148A in complex applications like EV chargers. Proactive design considerations can prevent physical damage and improve overall system robustness.

#KT148A #EVCharging #HardwareDesign #EmbeddedSystems #EMC #ReliabilityEngineering #SurgeProtection

At LPES, safety isn’t just a practice – it’s a standard. ✅
Our engineers adhere to OSHA protocols to safeguard industries against risks such as lightning strikes, surges, and electrical hazards.

The real question is:
👉 Are your infrastructures equipped with the right safety standards?

Choose compliance, choose protection, choose LPES ⚡

Safety protocols | Infrastructure safety | Electrical safety | Surge safety

#InfrastructureSafety #LightningProtection #ElectricalSafety #SurgeProtection

A $10 surge protecting wallwart with USB and 15 amp outlets https://boingboing.net/2018/08/06/a-10-surge-protecting-wallwar.html #surgeprotection #bewarethesurge #Review

#SurgeProtection

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