| CN2482776Y | 2002-03-20 | |||
| CN2450849Y | 2001-09-26 | |||
| CN2414584Y | 2001-01-10 | |||
| JP2007258134A | 2007-10-04 | |||
| US20030057866A1 | 2003-03-27 |
| I CLAIM 1 The Electronic Ballast for Self Ballasted Lamps and other Gas discharged lamps with or without Filaments can be made. Size of all the components of the circuit can be verified. Circuit functions at variable voltages and frequencies Lamp can be lighted with 2 wires or 4 wires connected to electronic ballast output Lamp will be lighted even if there is no filament or two filaments or one filament. Technology can be used for single filament lamp, double filament lamp or with connecting rods instead of filaments. 2 The lamp can be lighted even without flowing current serially in the circuit. Instead of filaments, connecting rods with different resistances can be used. Resistance can be connected serially to output charged and discharged capacities, thereby preventing the damages of the circuit. To protect the circuit when it is functioning abnormally, resistance is connected serially to output power flow and output charged and discharged capacitors. Coils of High frequency output terminal is connected to charge and discharged capacitors. So circuit is completed inside the Ballast and generated High Frequency power that lights the lamp. 3 The High Frequency power of secondary coil is used to function FFT transistor and BC 547 transistors so that in abnormal stage, circuit is made OFF. Collector terminals of FFT transistors and BC547 transistor are connected in such a way that the functioning of these transistors becomes active. Resistance is connected to the middle of the -ve terminals of 40V-100uf capacitor and 63V-23uf capacitors, so that the transistor is made ON/OFF Diac maintains the function of power flow of secondary coil smoothly. DC amplifying stage in the circuit will reduce the harmonics. The circuit functions because of the alternate and DC electrons flow. Disc capacitor is connected between base of the transistor and collector. This makes the cut off function of transistor very accurate. Turns of the O-Core winding coils can be changed, which results in the functioning of the circuit. Turns are not equal in numbers in O-core winding sets. Different Voltages capacitors and different capacitance capacitors are used in the circuit. So that when the circuit functions abnormally, the High Frequency power becomes CUT OFF. Lamps can be made functions, even if 4 wires or two wires are connected from output terminals of the circuit. The lamp does not start, if one of the cathode broken. Even if input power is available in the Ballast and lamp is not connected, the circuit becomes automatically OFF. Ballast will come automatically OFF, when short circuit across capacitors happens. If cathode is connected without lamp, the circuit does not function and safety is maintained. Lamp operates even in the absence of one of the cathodes. When the power flow is prevented while lamp functions, the Ballast stands automatically OFF. The power flow will stop automatically at High frequency output, if circuit functions abnormally. This is because the field effect transistor uses the power of C-Core High frequency coil of secondary coil and make BC transistor ON. Resistance is connected serially between output terminal of High Frequency coil and output terminal of DC block filter capacitor. This will results in the completion of High frequency power flow in the circuit. One wire from output terminal of DC block filter capacitor is connected to tube and other wire is connected from output terminal of High Frequency coil. This results in the smooth functioning of the tube. Circuit can be designed with different lamp wattages. |
FIELD OF INVENTION
Lighting - Domestic, Industrial and for other general purpose
BACKGROUND ART
This electronic ballast for self ballasted lamps and other gas discharged lamps with or without filaments perform with high energy efficiency and high quality meeting safety requirements and performance requirements as envisage in IS 15111 Part 1 and 2 and also IEC 60968-Safety requirements and IEC 60969-Performance requirements.
This technology is used to produce Ballast with various wattages.
These lamps will perform with high efficiency under different voltages and frequencies.
These lamps will perform with high efficiency with one filament or two filament or without any filaments.
OBJECTS OF THE PRESENT INVENTION
Transistors with various ratings can be used.
Diodes with different Voltage ratings and different current carrying capacities can be used.
Zinar diodes can be used instead of diodes.
Ferrite cores with different ratings and shapes can be used.
Ratings of all components or the circuit can be changed or modified. SUMMARY OF THE INVENTION
A4 rectifying diodes convert input AC power to DC power.
C4 resistance prevents circuit shortage in case circuit functions abnormally
B2 Electrolytic capacitors help to reduce AC components of DC Voltage
A2 rectifying diodes amplify Dc voltage. G4 capacitor and M2 Diac make circuits ON.
This high frequency power passes through the lamp directly. As a result the life of lamp increases.
Instead of filaments, connecting rods with less resistance can be used to function lamps.
If circuit functions abnormally, S2 resistance prevents shorting of the circuit.
Y2 -Field effect transistor can be used to raise sensing capacity of the circuit.
Y4 transistor stops high frequency power.
B4 diodes convert secondary coil power to DC power
T4 resistance reduces the power flow in the M4 Diac
F6 resistance helps to make circuit stable, when the circuit function abnormally. F4 resistance speed up the Cut off functioning, when the circuit functions abnormally at lower voltage
K4 Diodes reduces the heat produced by the D2 transistors
B2 resistance helps the transistors ON
F2 resistances help transistors to function very stably
D4 coils of R2-0-Core produces high frequencies and also controls transistors.
T2 resistance functions parallel to P2 diodes and makes output high frequency and equalises peak to peak.
E2 resistances increase the voltage and current of H2- secondary of C2-Ee-Core coils.
The combination of H4 coil and J2 capacitors helps to get stable high frequency power at output.
By increasing the C2 core size, the power loss can be reduced.
The combination of G4 capacitor and H4 coil produces high frequency power flow.
DESCRIPTION IN RELATION TO ACCOMPANYING FIGURES
STAGE 1 -Rectifying Circuit
A4 Diode converts input AC power to DC power. Resistance is connected serially to input power flow of rectifying circuit. This will minimise the possibility of circuit becomes short.
Higher voltage ratings diodes can be used in the circuit.
STAGE 2 - DC Voltage Amplifying Circuit
DC Voltage is boosted by B2 Electrolytic Capacitor and A2 Diodes.
STAGE 3 - Higher Frequency Oscillating Circuit.
G4 Capacitor makes the Circuit ON
S4 Disk capacitor makes the circuit ON in lower Voltage
K4 diodes enhance the functioning of D2 transistors and reduce transistor heat.
Resistances are connected parallel to P2 diodes which make peak to peak equaliser in high frequency power.
F2 because of its low Ohms helps to maintain stable functioning of transistors.
E2- Resistance helps to reduce the flow of current in lamps when the circuit is ON.
B2 -Resistance maintains the balance of frequency oscillating functioning.
High frequency power is controlled by D4 winding coil of R2-0- Chore.
J4 Capacitors filter Dc currents.
S2- Resistance prevents shorting of High frequency power.
J2 Capacitor charges high frequency power and then discharge and lights the lamps.
H4-Coil produces high frequency power. STAGE 4 -Even if the circuit functions abnormally, the circuit is maintained without any defects
FFT transistor is made ON by the secondary H2 coil of C2-EE-Core. As a result Y4 transistor will also made ON and stops the High frequency Power.
L4E4 capacitors help the stable functioning of Transistors.
M4Diac helps the FFT transistors for the initial power flow.
B4 diode converts high frequency power to DC power. This power is limited by M2-Resistance.
T4-Resistance limits the power flow of Diac.
F6 Resistor balances the circuit
F4 Resistor regulated the functioning of transistors.
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