Two thousand minute timer schematic diagram
Source: InternetPublisher:柯南道尔 Keywords: Power supply other power circuits Updated: 2021/09/28
A CD4020B divider is used to separate the 555 timer frequency in the two thousand minute timer schematic diagram. S1 is a range selector switch that provides time intervals from 2 to 20 minutes, 20 to 200 minutes, and 200 to 2000 minutes. Two thousand minute timer schematic diagram:
- Step-down power supply for driving relays
- Driving circuit that controls LED brightness using PWM signal
- Transformerless AC-DC constant current LED driver circuit
- How to use SBR to improve power conversion efficiency
- A simple positive and negative power supply circuit
- Dynamic power supply for power amplifier controlled by thyristor
- An ultra-low output voltage regulator
- LM317 regulated power supply
- Design of electric vehicle charger
- Production of backup power supply for cordless phone
- Analysis on solving various electromagnetic interference problems of electronic equipment
- How to turn on the power with LLC controller?
- Determining the prerequisites for successful circuit board design
- Maintenance skills and common faults of switching power supply
- About the working principle of single touch mode light switch
- Design of data transmission interface circuit for a car driving recorder
- SKiiPPACK unit circuit
- An operational amplifier with very high amplification
- mini stereo amplifier
- Clock switching circuit and its precautions