Loublet Schematic

This is the simple schema diagram of Dual Voltage Power Supply. It is used for Misc… application. This schema is called regulated power supply. For this reason the main component of this schema is Regulator IC. It also needs few components to built. The regulator 7812 is the positive voltage regulator and 7912 is the negative voltage regulator.

Simple Dual Voltage Power Supply 12 Volt Circuit Diagram

You can also use 7809 for 9 volt positive power supply and 7909 for negative voltage power supply. It regulates voltage from 24Volt to 12 Volt (DC). The transformer input is 110Volt to 220Volt (AC) and the output must be between 12Volt to 24Volt (AC) and current must be 500mA. In this schema some capacitors are used as a filter for removing repole.

This is a simple 0-50V 2A Bench Power Supply Circuit Diagram. I use the lm10 IC because it has a reference voltage and that’s useful for dc power supply. With two ICs can take different output voltage and amperage. This schema is protected from short schema.P2 is for controlling the current at the range of 0-2A. Stabilize the output voltage with R4 on negative pin on op-amp and with R2 & P1 on positive pin. 

 Op-amp output controls T1 that not let ripple of voltage.T1 increase or decrease ampere of R6 and control the voltage of T5 & T4. Pin 1 is the reference voltage and reference voltage is losing some voltage on R1 that has 100uA . This current passes through P1 too.
Vlose p1=100uA*Rp1

This lose voltage regulate output voltage rate of output current is compare between reference voltage of P3 and lose voltage on R11.T3 is protecting short schema with R11. For reduce out put voltage to 0v should parallel one resistor 470 ohm in out put. Minimum voltage is 0.4v. The maximum output voltage is fixed with R1b and should not become over of 50v. Therefore your transformer should give 36V, 3A with 4700uF capacitor. T6, T5, T7 need heatsilk.

R1a = 2,2 K
R1b = read the text
R2 = 10 K
R3, R7 = 3.3 k
R4 = 390 Ohm
R5 = 47 K
R6 = 3.3 K 1Watt
R8 = 180 Ohm
R9, R10 = 0.47 Ohm 3Watt
R11 = 0.075 Ohm 2Watt
R12 = 470 Ohm
P1 = 500K liner potentiometer
P2 = 4.7 K potentiometer
P3 = 10 K potentiometer
C1 = 1nF
C2 = 10nF
C3 = 22nF
C4 = 47mF 63v electrolytic
C5 = 4700mF 80v electrolytic
T1, T2 = BC161
T3, T4 = BD141
T5 = BD241
T6, T7 = 2V3055
D1, D2 = 1N4148
D3, D4 = 1N4001
IC1, IC2 = LM10C

This is the simple inrush current limiter schema diagram. Q1 is an npn Darling-ton and Q2 is a prip Darling-ton. MOV1 is a metal-oxide varistor and R8 is an thermistor for limiting inrush current. This schema limits ac line current to a load. When a predetermined interval has passed, RY1 shorts out thermistor or resistance RB. R4 can be 150 kQ if R9 is not used. If power is removed, ready for immediate restart.

This schema will be particularly useful to those hobbyists who use a ‘breadboard’ to try out ideas and who also use a simple ‘home-made’ DC power supply consisting of a transformer, rectifier, smoothing capacitor and protective fuse, that is, one without over current protection! In this schema, the detecting element is resistor R6. Under normal conditions, its voltage drop is not high enough to switch on transistor T1. The value of R6 can be altered to give a different cut-off current, as determined by Ohm’s Law, if required. When a short schema occurs in the load, the voltage rises rapidly and T1 starts to conduct. 

This draws in the relay, switching its contacts, which cuts off power to the external schema, and instead powers the relay coil directly, latching it in this second state. The schema remains in this state until the primary power supply is switched off. Capacitors C1 and C2 hold enough charge (via D3, D4 and D6, which prevent the charge from being lost to the rest of the schema, whichever state it is in) to keep T1 switched on and power the relay while it switches over, and R2 and R4 provide slow discharge paths. LEDs D1 (red) and D5 (green) indicate what state the schema is in. Inductor L1 slows the inrush of current when the schema is switched on, which would otherwise cut off the schema immediately.

D2 and D7 provide the usual back-emf protection across the coils. In use, the input of the schema is connected to the main transformer-rectifier-capacitor-fuse power supply via K1, and the output is connected to the (experimental) load via K2. Note that the input voltage must be a floating supply if Vout– is grounded via the load, as Vin– and Vout– must not be connected together. Some consideration needs to be given to a number of components. First, the choice of relay Re1. For the prototype, this was obtained from Maplin, part number YX97F. This is has a coil resistance of 320 ?, which with R1 forms the collector load for T1. 

Its allowed pull-in voltage range is nominally 9 V to 19 V, which limits the input power supply voltage to between around 10 V to 30 V (DC only). R1 could be replaced by a wire link for operation at input voltages below 10 V, or increased in value, as determined by either the application of Ohm’s Law once more or trial and error, for an input voltage above 30 V. Coil L1 was obtained from Farnell, part number 581-240. Finally, the protective fuse for the input power supply should be a ‘slow-blow’ type; ‘fast’ fuses will rupture before the relay has time to switch. Also note that this device is meant to save fuses, not replace them. A mains transformer must always be fused if it is not designed to run safely, i.e., without presenting a fire hazard, even if its output has a continuous short-schema fault.

Streampowers

This is 1983 Ford Bronco Wiring Diagram: blower motor, coolant temp, ignition module, select
switch, resistance wire, horn relay, alternator, relay, stop light switch, fuse box, directional flasher, low brake, hazard flasher, coolant temp switch, high beam, fuel gauge, license lights, red wire, tail light, instrument light