Voltage-divider bias
API · /transistor-api
BJT Transistor API
salutare
4,994 Abbonati
Bipolar-junction-transistor (BJT) circuit maths as an API, computed locally and deterministically. The currents endpoint relates the three terminal currents through the DC current gain β (hFE): the collector current Ic = β·Ib, the emitter current Ie = (β+1)·Ib and the common-base gain α = β/(β+1) ≈ 1, from β and any one current. The bias endpoint analyses the operating point of the classic voltage-divider bias network — from the supply voltage, the two divider resistors, the collector and emitter resistors, β and the base-emitter drop it computes the Thévenin equivalent (Vth = Vcc·R2/(R1+R2), Rth = R1‖R2), the base current Ib = (Vth − Vbe)/(Rth + (β+1)·Re), the collector and emitter currents, the collector-emitter voltage Vce and the node voltages, and classifies the operating region as cutoff, active or saturation. The power endpoint computes the transistor's power dissipation, Pd ≈ Vce·Ic (plus Vbe·Ib), to check it against the rated maximum. Currents are in amperes, resistances in ohms and voltages in volts, with Vbe defaulting to 0.7 V for silicon. Everything is computed locally and deterministically, so it is instant and private. Ideal for electronics, amplifier-design, embedded and hobbyist app developers, biasing and operating-point tools, and electronics education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is BJT biasing; for op-amp circuits use an op-amp API and for an LED series resistor an LED-resistor API.
api.oanor.com/transistor-api
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 71 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 4,994
- attiva
- Chiamate totali
- 76
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 2,580 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 2,580 calls/month
- 2 req/sec
- Currents + bias + power
- No credit card
Starter
€8.00 /mese
- 39,200 chiamate/mese
- 6 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 39,200 llamadas/mes
- 6 req/seg
- Punto de operación, región, α
- Soporte por correo electrónico
Pro
€21.00 /mese
- 253,000 chiamate/mese
- 15 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 253,000 calls/month
- 15 req/sec
- Amplifier & embedded pipelines
- Priority support
Mega
€65.00 /mese
- 1,640,000 chiamate/mese
- 40 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1,640,000 llamadas/mes
- 40 req/seg
- Escalabilidad de plataforma
- SLA dedicado
Costruito da
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RTD Pt100 Sensor API
RTD (Widerstands-Temperatur-Detektor) Sensor-Mathematik als API, lokal und deterministisch mit der IEC 60751 Callendar-Van Dusen Gleichung berechnet – die Widerstands-, Temperatur- und Toleranzzahlen, die ein Instrumentierungs- oder Steuerungsingenieur von einem Pt100 oder Pt1000 abliest. Der Widerstands-Endpunkt gibt den Sensorwiderstand aus der Temperatur: über 0 °C, R = R₀·(1 + A·T + B·T²) mit A = 3,9083×10⁻³ und B = −5,775×10⁻⁷; unter 0 °C fügt ein dritter Term C·(T−100)·T³ hinzu – ein Standard-Pt100 (100 Ω bei 0 °C) zeigt 138,51 Ω bei 100 °C und 80,31 Ω bei −50 °C, und ein Pt1000 ist das Zehnfache. Der Temperatur-Endpunkt kehrt dies um, um einen gemessenen Widerstand wieder in Temperatur umzuwandeln – analytisch über 0 °C, iterativ darunter – genau das, was ein Messumformer mit der Brückenablesung macht, und eine Erinnerung daran, dass eine 3- oder 4-Leiter-Verbindung den Leitungswiderstand aufhebt, sodass er nicht als zusätzliche Grad gelesen wird. Der Toleranz-Endpunkt gibt die IEC 60751 Genauigkeitsband in °C und Ω nach Klasse an – AA ±(0,10 + 0,0017·|T|), A ±(0,15 + 0,002·|T|), B ±(0,30 + 0,005·|T|), C ±(0,60 + 0,010·|T|) – der Fehler wächst mit der Entfernung von 0 °C. Alles wird lokal und deterministisch berechnet, daher ist es sofort und privat. Ideal für Instrumentierungs- und Steuerungssoftware, Datenlogger- und Messumformer-Firmware, Kalibrierungs- und industrielle IoT-Tools. Reine lokale Berechnung – kein Key, kein Drittanbieter-Dienst, sofort. 3 Compute-Endpunkte. Für NTC-Thermistoren verwenden Sie eine Thermistor-API; für Thermoelemente eine Thermoelement-API.
api.oanor.com/rtd-api
Voltage Divider API
Resistive voltage-divider circuit design as an API, computed locally and deterministically. The divide endpoint takes an input voltage and two resistors and returns the output voltage Vout = Vin·R2/(R1+R2), the current I = Vin/(R1+R2) that flows through the chain, and the power dissipated in each resistor and in total — a 12 V source with R1 = 1 kΩ and R2 = 2 kΩ gives 8 V at 4 mA. The loaded endpoint adds a load resistor across R2, computes the parallel combination R2′ = R2·RL/(R2+RL) and the loaded output Vout = Vin·R2′/(R1+R2′), and reports the droop in volts and percent against the unloaded value, the classic mistake when a divider feeds a real load. The resistor endpoint sizes the missing resistor for a target output — R2 = R1·Vout/(Vin−Vout) or R1 = R2·(Vin−Vout)/Vout — so you can pick parts for a reference or sensor-bias point. All quantities are volts, ohms, amps and watts. Everything is computed locally and deterministically, so it is instant and private. Ideal for electronics, embedded, hardware, sensor-interfacing and EE-education app developers, reference-voltage and bias-network tools, and maker software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is the resistive divider; for a single Ohm’s-law relationship use an Ohm’s-law API and for RC/RL filters an RC-filter API.
api.oanor.com/voltagedivider-api
RC Filter API
First-order RC and RL passive-filter design as an API, computed locally and deterministically. The lowpass and highpass endpoints take a resistor and capacitor (RC) or a resistor and inductor (RL) and return the −3 dB cutoff frequency (fc = 1/(2πRC) for RC, R/(2πL) for RL), the time constant (τ = RC or L/R) and the angular cutoff; pass a frequency as well and they add the magnitude response as a linear gain and in decibels and the phase shift in degrees — a 1 kΩ / 1 µF low-pass has fc ≈ 159.15 Hz, and right at the cutoff the gain is −3.01 dB with −45° phase for a low-pass or +45° for a high-pass. The component endpoint solves the missing one of fc, R and C from the other two (fc = 1/(2πRC)), so you can size a resistor or capacitor for a target cutoff. All quantities are SI: ohms, farads, henries and hertz. Everything is computed locally and deterministically, so it is instant and private. Ideal for electronics, audio, embedded, signal-processing and EE-education app developers, filter-design and circuit-sizing tools, and maker software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is first-order single-pole filter design; for full RLC impedance and resonance use an impedance API and for stored capacitor energy a capacitor API.
api.oanor.com/rcfilter-api
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Quanto costa BJT Transistor API?
BJT Transistor API ha un piano gratuito con 100 chiamate / mese. I piani a pagamento partono da €8.00 / mese con quote più alte e limiti di velocità più rapidi.
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Frammenti di codice
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curl https://api.oanor.com/transistor-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/transistor-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/transistor-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/transistor-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Valutazioni
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