Booster Circuit Protection Capacitor Short-Circuit Block
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Solution Overview
Problem
In the production assembly process of electronic cigarette battery devices, a short-circuit between the load and ground causes an instantaneous increase in current, leading to the burnout of components in the booster circuit due to insufficient resistance.
Innovation Solution
A booster circuit design incorporating a protection capacitor between the boosting module and rectifier diode, which blocks direct current flow to the ground, preventing component burnout by breaking the circuit between the power source and load when a short-circuit occurs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the load is short-circuited to the ground in the production assembly process, then the resistance in the booster circuit becomes small, but the current instantly increases and burns out the components
Solution Approach 1:
The protection capacitor is pre-configured in the circuit between the power source and the load to block direct current flow to ground. This preliminary protective measure is already in place before any short-circuit event occurs, preventing the harmful current surge that would otherwise burn out components during assembly or operation.
Solution Approach 2:
The protection capacitor acts as an intermediary element inserted between the power source and the load. It mediates the current flow by blocking direct current while allowing alternating current to pass, thereby preventing the harmful direct current surge that causes component burnout during short-circuit conditions.
2Reliability
If the protection capacitor is added to block direct current flow, then component burnout is prevented, but the circuit complexity increases
Solution Approach 1:
The protection capacitor is a simple, inexpensive electronic component that provides effective protection against current surges. While it adds one element to the circuit, the capacitor is a low-cost, standard component that significantly enhances reliability without requiring complex design or expensive materials.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The protection capacitor effectively prevents component burnout in the booster circuit by interrupting the direct current path, thereby protecting the circuit components during short-circuit events.
Implementation Method 1
a protection capacitor, a rectifier diode, a voltage feedback module and an output control resistor; wherein an output end of the boosting module is electrically connected to a first end of the protection capacitor, and a second end of the protection capacitor is grounded; the protection capacitor is configured to block the power source from directly discharging to the ground when the load is short-circuited
Data Source
AI summary
The present invention relates to the technical field of electronics, and provides a boosting circuit, a battery device, and an electronic cigarette. An output end of the boosting module is connected to a first end of the protection capacitor; an anode of the rectifier diode is connected to a second end of the protection capacitor, and a cathode of the rectifier diode is connected to the first end and a load of the voltage feedback module; the second end of the voltage feedback module is connected to a feedback end of the boosting module and a first end of the output control resistor, and a second end of the output control resistor is grounded; an enabling end of the boosting module is connected to a controller.