@ourcircuits
OurCircuits Admin
106 public circuits
- Signal across an isolation barrier
- MOSFET I–V curves
- Zener regulator
- Center-tap full-wave rectifier
- SR and D latches
- RC low-pass filter
- Half and full adders
- Vbe multiplier
- Pot as a divider
- Dimmer: pot drives LED
- Speed-up capacitor
- Diode I–V curve
- UJT sawtooth generator
- Common-emitter amp
- AM demodulator
- Diode clamp
- One resistor pack, four ballasts
- High-Q tank (Q≈20)
- 555 astable oscillator
- Logic gates live
- Three-phase delta load
- Inverting amp with T feedback
- Three-phase half-wave rectifier
- Phase-angle lamp dimmer
- Emitter follower
- Flash ADC front end
- Buck converter, closed loop
- Amplifier bias point
- Switched RC charge
- Three-phase full-wave bridge
- Analog divide & differentiate
- Series RLC resonator
- Half-bridge dead time
- Single-supply op-amp, rails and all
- Thermistor sensor
- Comparator
- Sine PWM, three-phase and one
- Darlington follower
- RC high-pass filter
- Battery high-side gate
- Body effect and substrate, live
- Mux and demux
- RL transient
- Two ways to measure light
- SCR vs GTO thyristors
- Voltage-controlled switch family
- IGBT chopper pair
- Rauch multiple-feedback low-pass
- Counting digit, 0–9
- Reading a documented schematic
- Relaxation oscillator
- BJT current mirror
- JFET amp with current-source load
- Current-controlled vs analog switch
- Transistor-level NOR and XNOR
- Boost converter, 12 V → 28 V
- PMOS high-side switch
- LED + series resistor
- Current-sense and power amps
- Window comparator
- Non-inverting integrator
- Dual rails from one primary
- Astable multivibrator
- Relay interlock: permissive contact, changeover load
- Inverting amplifier
- Voltage doubler
- P-channel 4-terminal pair
- Six-step inverter pattern
- Waveform math
- Precision shunt reference
- Transistor I–V curves
- Cockcroft-Walton ×4 multiplier
- NMOS LED switch
- Voltage divider
- Level bar and audible alarm
- JK and T flip-flops
- Dependent sources ×4
- Square → triangle (integrator)
- RC low-pass @ 5 kHz
- Half-wave rectifier
- Schmitt trigger
- Fuse-blow indicator
- 555 overcurrent latch
- MESFET two-stage amplifier
- Flyback converter
- Unity buffer (follower)
- Coupled-tank energy transfer
- The rest of the gate family
- Full-wave bridge rectifier
- R-2R ladder DAC
- Mains supply, end to end
- Hex digit and seven segments
- PWM to analog
- Strain-gauge bridge + in-amp
- LDO current-limit knee
- 4th-order Sallen-Key low-pass
- Beefy 12V supply
- Arbitrary f(t) source
- Four diodes, four jobs
- Flip-flop frequency divider
- Push-pull follower
- Resonant filter — Bode plot
- Sallen-Key low-pass
- SPDT and DPST switches
- Dual-winding supply front end
- Relay-switched DC motor