Power supply circuit with line loss compensation function
A compensation circuit and power circuit technology, applied in the field of compensation circuit, can solve the problem of easy burnout of compensation circuit, etc., and achieve the effect of being convenient for wide-scale popularization, reliable and safe application, and improving anti-interference ability.
Inactive Publication Date: 2016-07-20
天津铭发科技有限公司
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Problems solved by technology
[0003] The present invention provides an automobile circuit compensation circuit to solve the problem that in the existing compensation circuit in the above-mentioned background technology, a high current flows through the compensation circuit in an instant, and the compensation circuit is easily burned out.
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Embodiment
[0015] This embodiment includes: a current sampling circuit and a compensation circuit.
[0016] The current sampling circuit includes a current sampling sensor J1, a transistor Q1, a diode D3, a voltage regulator tube D4, a capacitor C2, a resistor R3, and a resistor R4. The pin 1 of the current sampling sensor J1 is connected to one end of the resistor R4, and the anode of the voltage regulator tube D4. Its pin 2 is connected to the base of the transistor Q1, the collector of the transistor Q1 is connected to one end of the resistor R2, the anode of the diode D1, its emitter is connected to the anode of the diode D3, the cathode of the regulator D4, and the cathode of the diode D3 is connected to the resistor R3 One end of the capacitor C2, the other end of the resistor R3 is connected to the other end of the capacitor C2, the other end of the resistor R4, the cathode of the diode D2, and the pin 1 of the sliding rheostat R5.
[0017] The compensation circuit includes resist...
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The invention belongs to the technical field of compensation circuits, and particularly relates to a power supply circuit with a line loss compensation function.The power supply circuit comprises a current sampling circuit and a compensation circuit; the current sampling circuit comprises a current sampling sensor (J1), a first pin of the current sampling sensor (J1) is connected with one end of a resistor (R4) and a positive electrode of a voltage regulator tube (D4), a second pin of the current sampling sensor (J1) is connected with a base electrode of a triode (Q1), a collector electrode of the triode (Q1) is connected with one end of a resistor (R2), a negative electrode of a diode (D3) is connected with one end of a resistor (R3) and one end of a capacitor (C2), and the other end of the resistor (R3) is connected with the other end of the capacitor (C2); the compensation circuit comprise a slide rheostat (R5) and a power supply (J2), a first pin of the power supply (J2) is connected with a third pin of the slide rheostat (R5), a second pin of the power supply (J2) is connected with a negative electrode of the diode (D5), and a positive electrode of the diode (D5) is connected with a second pin of the slide rheostat (R5).
Description
technical field [0001] The invention belongs to the technical field of compensation circuits, in particular to a power supply circuit with a line loss compensation function. Background technique [0002] The existing circuit compensation controller includes a current sampling load. When the current in the circuit needs to be compensated, the resistance value of the current sampling load is small, and the compensation current will flow through the compensation circuit in a short time; when the circuit does not need compensation, The resistance value of the current sampling load is large, and the compensation current flowing through the compensation circuit is very small. Among them, when the circuit needs to be compensated, because a high current flows through the compensation circuit in an instant, it is easy to burn out the compensation circuit. Contents of the invention [0003] The present invention provides an automobile circuit compensation circuit to solve the probl...
Claims
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IPC IPC(8): G05F1/573
Inventor 穆德霞
Owner 天津铭发科技有限公司