Showing posts with label 12vdc. Show all posts
Showing posts with label 12vdc. Show all posts
Tuesday, October 14, 2014
MOSFET IRF540 based 100W 12VDC to 220VAC Inverter diagram
The following inverter circuit is using MOSFET transistor IRF540 instead of ordinary transistor (eq 2N3055). FET is better than ordinary transistor in both stability and responsibility.
Saturday, September 6, 2014
Monitor voltage and 5VDC and 12VDC Wiring diagram Schematic
This schema is a voltage monitor which operates on fixed testes ± 5 VDC and ± 12 VDC, and is easily constructed as shown in Fig. It is considerably simpler than the normal display using comparators and AND gates. The schema is not intended to indicate the level of entries. If one of the testes fail, for example, -5 V line fails, the transistor Q3 remains on but the base-emitter junction of T2 is not, so that this transistor is cut off. When this happens, there is no current through D, which then turns off.
Monitor voltage + and - 5VDC + and - 12VDC Circuit Diagram
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