berkeman said:The simplest oscillator for this is the Relaxation Oscillator:
http://en.wikipedia.org/wiki/Relaxation_oscillator
You can also use the classic 555 timer chip and follow the datasheet or the application notes for it:
http://en.wikipedia.org/wiki/555_timer
Yes, it is possible to convert 5V DC (direct current) to AC (alternating current) through the use of an inverter. An inverter is a device that converts DC to AC by using electronic components such as transistors and capacitors.
The main purpose of converting 5V DC to AC is to be able to use DC-powered devices in areas where only AC power is available. This is common in homes and buildings where the electrical outlets provide AC power, but many electronic devices, such as phones and laptops, require DC power.
An inverter works by taking the DC input and using electronic switches to rapidly turn the current on and off, creating a pulsating current. This pulsating current is then passed through a transformer, which converts it into AC power.
Many devices can be powered with 5V DC to AC conversion, including phones, laptops, small appliances, and even larger appliances such as refrigerators and air conditioners. However, the wattage and capacity of the inverter must be suitable for the specific device.
One limitation of converting 5V DC to AC is that the process is not 100% efficient, meaning some energy is lost in the conversion process. Additionally, the size and capacity of the inverter must be carefully chosen to ensure it can handle the power needs of the device being powered. Lastly, using an inverter can also introduce electrical noise and potential interference with other electronic devices.