5v To 9v Step Up Converter

Ccyc dc 5v to dc 9v usb voltage step up converter cable power supply adapter cable with dc jack 5 5 x 2 5mm or 5 5 x 2 1mm for fan led light wireless router speakers and more devices 4 4 out of 5 stars 173 7 98 7 98.
5v to 9v step up converter. Step up voltage converter qutaway usb 5v to 9v or 12v step up cable adjustable dc to dc transformer converter with switch 5v 9 12v 4 3 out of 5 stars 28 11 49 11. I used jumper cables to connect the two together which will be have the dc 9 volt output voltage and current about 40 ma. 1 5v to 9v step up dc converter circuit diagram based on circuit in figure 2 will seen that there is no point jumping legs 3 and l1 if a single battery.
Source : pinterest.com