query: How to convert 9v supply to 5v?
positive_passages.docid: 7621
positive_passages.text: Reducing voltage with resistors
negative_passages.docid: 6152
negative_passages.text: Automatically switching from 9V battery to DC wall adapter on insertion
negative_passages.docid: 44475
negative_passages.text: input to pic with 12V and resistors
negative_passages.docid: 125118
negative_passages.text: 230V AC to 5V DC converter, lossless
negative_passages.docid: 128201
negative_passages.text: 3 Contact Laptop Power Supply
negative_passages.docid: 152666
negative_passages.text: Coin cell to power a 5mm UV LED?
negative_passages.docid: 31952
negative_passages.text: Regulated AC power supply?
negative_passages.docid: 44515
negative_passages.text: using buck converter
negative_passages.docid: 113480
negative_passages.text: Using voltage divider in a circuit
negative_passages.docid: 14016
negative_passages.text: Least expensive way to boost DC voltage
negative_passages.docid: 17141
negative_passages.text: Voltage Follower Not Giving Expected Output
negative_passages.docid: 28292
negative_passages.text: Making dual power supply from single for opamp?
negative_passages.docid: 2774
negative_passages.text: Stepping up 3V to 5V
negative_passages.docid: 153381
negative_passages.text: How do I design a 2A or more power supply for my consumer USB devices?
negative_passages.docid: 145553
negative_passages.text: 4-20mA to 0-3V3 Converter
negative_passages.docid: 128474
negative_passages.text: Single supply op amp to convert 0-5VDC to +/-2VDC (microcontroller to line level)
negative_passages.docid: 69536
negative_passages.text: How to activate a pn2222 transistor with very low voltage