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SIR TECH GSM Clinik
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Sir Tech GSM Clinik is a phone repair company that provides top-notch hardware and software repair
Sir Tech GSM Clinik is a phone repair company that provides top-notch hardware and software repair services for mobile phones. The company was founded by Umar Abdulkadir Imam, who serves as the CEO.
Quick Notice 📌
Due to some technical issues we'll be moving our business to another Page with name "Sir-tech gsm clinik" check comment section for the link please do join us there.
16/01/2025
Have you ever experienced this incident with your phone?
What did you do at first before reaching out to a technician.
Share your story with us📌
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Wayar hannu ka ta taɓa fadawa cikin ruwa,?
Mai kayi mata fakin kaiwa ga masu gyara?
Bamu labarin yadda ta kaya📌
15/01/2025
Your phone's battery doesn't have to die by 3 PM📌
Here are 5 ways to extend your phones battery Iife.
1. Turn off background apps.
2. Lower screen brightness.
3. Use battery saver mode.
4. Turn off push notifications.
5. Unplug your charger once it's fully charged.
Which tip will you try first?
Let us know below 👇
03/01/2025
@ Sir Tech Gsm Clinik we are
"REPAIRING MORE THAN JUST PHONES...
We're not just fixing devices, we're:
Restoring connections
Reviving memories
Rebuilding confidence
Let's take pride in our work and remember the positive impact we have on others!
17/12/2024
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15/12/2024
OVP stands for Over-Voltage Protection, a crucial feature in mobile phones and electronic devices that protects circuits from damage caused by excessive voltage. It is typically integrated into the charging circuit or power management IC (PMIC) of a mobile phone.
Functions of OVP in Mobile Phones
1. Protects Internal Components:
Prevents damage to sensitive components like the PMIC, processor, display, and battery caused by voltage spikes or surges.
2. Prevents Battery Overcharging:
Limits the charging voltage to the battery to avoid overcharging, which can lead to overheating, swelling, or even explosion.
3. Ensures Safe Charging:
Blocks excess voltage from faulty chargers, power supplies, or unstable power sources.
4. Increases Device Lifespan:
Prevents premature failure of components by ensuring they operate within safe voltage limits.
5. Regulates Input Voltage:
Ensures that only the required amount of voltage reaches the phone, diverting or cutting off excessive input.
How OVP Works
OVP systems monitor the input voltage in real time. If the voltage exceeds a predefined safe threshold (e.g., 5V for USB charging), the OVP circuit:
Activates a shut-off mechanism to disconnect the circuit.
Diverts the excess voltage to a ground or discharge path using protective components like zener diodes, varistors, or clamping circuits.
Common OVP Components in Mobile Phones
1. Zener Diodes:
Clamp the voltage to a specific level, preventing overvoltage from reaching critical parts.
2. Fuses:
Blow out when a voltage spike occurs, breaking the circuit.
3. MOSFETs:
Act as switches that disconnect the power supply if overvoltage is detected.
4. TVS Diodes (Transient Voltage Suppressors):
Absorb and dissipate sudden voltage surges.
5. PMIC Built-in OVP:
The power management IC often integrates OVP functionality to regulate input from chargers.
Symptoms of Faulty OVP in Mobile Phones
Phone not charging or turning on.
Overheating during charging.
Charging IC or PMIC failures.
Battery swelling due to overcharging.
Troubleshooting OVP Issues
Check Charger: Ensure the charger provides a stable voltage and current.
Inspect Components: Use a multimeter to check protective components like diodes, resistors, or fuses.
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Zaria
810106