Series components always split up the supply voltage (Kirchhoff’s Voltage Law).
Whatever you attach to the output will become part of the resistor based voltage divider. So you usually don’t want to try to power anything, but to instead use the voltage as an input signal for some kind of amplifier that just looks at the voltage and doesn’t let hardly any current flow through it. Topics covered later in this series. Brief NPN BJT emitter follower set by trimpot using 2N3904 bipolar junction transistor –
Resistance based components divide up the voltage based on the percentage of resistance that heads to each of the power supply voltages in relationship to the output node.
Many circuits depend on using fixed value resistor voltage dividers to set a specific fraction of the supply voltage to part(s) of the circuit. The 555 timer integrated circuit (IC) does so internationally to get 1/3 and 2/3 supply voltages.
- Brief trimmer potentiometer trimpot variable resistor voltage divider circuit fragment
- Brief 555 bistable mode flip flop alternating LEDs circuit
- Brief 555 timer monostable one shot mode circuit
- Brief 555 timer astable multivibrator mode circuit
- Brief 555 Schmitt trigger logic inverter
- Quick NPN BJT switch circuit – Bipolar Junction Transistor
- Brief PNP BJT switch circuit – Bipolar Junction Transistor
- Brief capacitor charge and discharge through LEDs circuit
- Brief capacitor charging RC time constant demonstration circuit
- Brief capacitor discharge RC time constant circuit
- Brief charging capacitor voltage ramp circuit using LM334 current source
- Brief discharging capacitor voltage ramp using LM334 current source
- Information on this site is not guaranteed to be accurate. Always consult the manufacturer info/datasheet of parts you use. Research the proper safety precautions for everything you do.