Calculadora de Bomba de Carga de Tensión
Calcula la tensión de salida, corriente y selección de condensadores para circuitos de bomba de carga.
Fórmula
V_oc = V_in × (N+1), V_out = V_oc − N × I_out / (f × C)
Cómo Funciona
A charge pump is an electronic circuit that converts a DC input voltage to a higher or lower DC output voltage using capacitive storage and switching techniques. Unlike traditional transformers, charge pumps use capacitors and switching elements to transfer and accumulate electrical charge, enabling voltage conversion without magnetic components. These circuits are particularly useful in low-power and compact electronic systems where traditional voltage regulation methods are impractical.
Ejemplo Resuelto
Given: Input voltage (Vin) = 3.3V, Charge Pump Multiplier = 2, Capacitance (C) = 10μF Step 1: Calculate Output Voltage Vout = Vin × Charge Pump Multiplier Vout = 3.3V × 2 = 6.6V Step 2: Verify Charge Transfer Q = C × ΔV Q = 10μF × (6.6V - 3.3V) = 33 nC Final Output Voltage: 6.6V
Consejos Prácticos
- ✓Always consider charge pump efficiency, which typically ranges between 70-90%
- ✓Use low-ESR capacitors for improved performance
- ✓Include input and output filtering capacitors to reduce noise
- ✓Consider thermal management for high-current applications
Errores Comunes
- ✗Neglecting parasitic capacitance and switching losses
- ✗Overlooking maximum current capacity of the charge pump
- ✗Ignoring input voltage ripple and its impact on output stability
Preguntas Frecuentes
What is a charge pump voltage converter?
A charge pump is an electronic circuit that transfers electrical charge between capacitors to convert input voltage to a different output voltage using switched capacitor techniques.
How efficient are typical charge pump circuits?
Most charge pump circuits operate with efficiency between 70-90%, depending on design complexity and component selection.
Where are charge pumps commonly used?
Charge pumps are frequently used in microelectronics, mobile devices, LED drivers, analog circuits, and low-power voltage regulation applications.
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