Handheld GPS Glareshield (or Dashboard) Mount with Power Supply
#GPS
#power supply
#dashboard mount
#handheld device
#vehicle electronics
#12V
#cigarette lighter
#navigation
#portable
#mounting
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Soft Start For Switching Power Supply
A switching power supply that has an output voltage significantly lower than its input voltage exhibits a unique characteristic: the current drawn from the supply is less than the output current. However, the input power (UI) is, naturally, greater than...
12V Power Supply Circuits
Four simple 12V power supply circuits are designed to provide output voltages close to 12V. The first power supply circuit utilizes a BD139 transistor, a zener diode, and several passive components. Each schematic is straightforward to assemble and will operate...
GPS reference clock NTP server with Gentoo
An L7805 voltage regulator provides a 5V rail. The input and output of the regulator are stabilized using a 470µF capacitor and a 10µF capacitor, respectively, to smooth the voltage supply. This 5V rail powers the MAX232 level shifter and...
PM4040F application circuit switching power supply drive
The PM4040F is utilized in switching power supply applications for medium power ranges. It is designed to drive power supplies between 200W and 800W, as illustrated in the accompanying bridge circuit. For power applications below 1000W, an alternative circuit configuration...
Sony KV-S29MHl TV switching power supply (SIR a 80145A) circuit diagram
The circuit of the Sony KV-S29MHl (S Movement series) TV switching power supply (SIR a 80145A) consists of three main sections: (A) the power oscillation part, (B) the regulator part, and (C) the output section.
The Sony KV-S29MHl TV switching power...
KC2ZPLs Web Design and Electronic Home
Now that these power supplies are available, it would be beneficial to evaluate their performance. Traditionally, an adjustable load (a robust resistor) is connected to the output to measure both output voltage and current at various points. This allows for...
PFC Switching Power Supply
The following circuit illustrates a Power Factor Correction (PFC) Switching Power Supply Circuit Diagram. Features include suitability for 1U (1.75-inch) form factor and minimization of input harmonics.
The PFC Switching Power Supply Circuit is designed to enhance the efficiency of power...
Cheap 12V to 220V Inverter
Although today's electrical appliances are increasingly self-powered, especially portable ones used for camping or summer holidays, there are still occasions when a 230 V AC source is necessary. If the power requirement from such a source remains relatively low—here, a...
12V Halogen Dimmer
A 12V 20W halogen lamp (MR16) and a 4.2Ah SLA battery are utilized in a bike light system. Due to the limited lifespan of the battery at this power rating, a cost-effective light dimmer was designed to reduce battery consumption...