Transformer Turns Calculator
Calculate transformer turns ratios, primary/secondary relationships, power analysis, and impedance matching for electrical and electronic applications.
Preset Configurations
Primary Side
Secondary Side
Calculation Results
Turns Ratio
10.000:1
Transformer Type
Step-down
Based on turns ratio
Power Analysis
Primary: 120.0W
Secondary: 120.0W
Loss: 0.0W
Voltage Relationship
Calculated : 12.00V
Calculated : 120.00V
Current Relationship
Calculated : 10.00A
Calculated : 1.00A
Impedance Transformation
Ratio: 100.0:1
Calc : 0.08Ω
Calc : 80.00Ω
Transformer Equations
Basic Relationships
Turns ratio equals voltage ratio and inverse current ratio
Power Conservation
Input power equals output power plus losses
Impedance Transformation
Primary impedance equals turns ratio squared times secondary impedance
Current Values
Current Values:
Primary: 1.00A
Secondary: 10.00A
Ratio: 10.00:1
Transformer Schematic
Real-World Applications
Power Supply Transformers
- • AC adapters and chargers
- • Power distribution systems
- • Voltage regulation circuits
- • DC power supply design
Audio Transformers
- • Impedance matching for speakers
- • Tube amplifier output coupling
- • Microphone preamp isolation
- • Line-level signal coupling
RF & Communications
- • Antenna tuning networks
- • RF amplifier matching
- • Balun transformers
- • Isolation transformers
Safety Considerations
- • Always observe proper electrical safety when working with transformers
- • Ensure adequate insulation for voltage levels involved
- • Consider thermal management for power applications
- • Use appropriate wire gauge for current ratings
- • Follow local electrical codes and regulations
Understanding Transformers
How Transformers Work
Transformers operate on the principle of electromagnetic induction. When AC current flows through the primary winding, it creates a changing magnetic field in the core. This changing field induces a voltage in the secondary winding.
Key Principles
- Voltage is proportional to the turns ratio
- Current is inversely proportional to the turns ratio
- Power is conserved (minus losses)
- Impedance is transformed by the square of the turns ratio
Design Considerations
- Core Material: Iron, ferrite, or air core selection
- Wire Gauge: Based on current requirements and efficiency
- Insulation: Voltage rating and safety requirements
- Frequency Response: Bandwidth and resonance considerations
- Power Rating: Thermal and magnetic saturation limits
Common Applications
- Power distribution and voltage conversion
- Audio signal coupling and impedance matching
- RF circuit design and antenna systems
- Isolation for safety and noise reduction