मुफ्त ट्रांसफॉर्मर टर्न्स अनुपात कैलकुलेटर
ट्रांसफॉर्मर का टर्न्स अनुपात और आउटपुट वोल्टेज निकालें।
V
V
A
°C/W
°C
अपव्ययित शक्ति
3.50 W
Junction Temperature200.0 °C
तापमान वृद्धि175.0 °C
Power Dissipated vs Input Voltage
सूत्र
## Linear Regulator Heat ### Formulas **P = (V_in - V_out) x I_load** **T_junction = T_ambient + P x Theta_JA** Keep junction temperature below the maximum rating (usually 125-150C). Use a heat sink to reduce thermal resistance.
हल किया गया उदाहरण
12 V to 5 V regulator at 0.5 A, 50 C/W thermal resistance, 25C ambient.
- 01P = (12 - 5) x 0.5 = 3.5 W
- 02T_rise = 3.5 x 50 = 175C
- 03T_junction = 25 + 175 = 200C (exceeds limits!)
अक्सर पूछे जाने वाले प्रश्न
What is a safe junction temperature?
Most ICs are rated for 125-150C maximum. Stay below with margin, ideally under 100C for reliability.
How to reduce junction temperature?
Add a heat sink, reduce input voltage, reduce current, improve airflow, or switch to a switching regulator.
What is thermal resistance?
Measured in C/W, it indicates temperature rise per watt of dissipation. Lower is better. Depends on package and heat sinking.
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