hid monolithic integrated controller
A single-chip integration and controller technology, applied in lighting devices, light sources, electrical components, etc., can solve the problems of low reliability, low added value, and high cost, and achieve high reliability, stable performance parameters, and fewer components. Effect
Active Publication Date: 2017-04-05
广州纽威光电科技有限公司
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Problems solved by technology
However, HID electronic ballasts composed of general-purpose ICs have disadvantages such as large process dispersion, many components, high cost, low reliability, and unstable performance parameters. Therefore, HID ballasts using this scheme cannot enter the high-end market. Low-end market that can lower added value
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[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Such as figure 1 As shown, the HID single-chip integrated controller of the present invention includes an integrated external power supply interface A, a voltage stabilization module, an oscillation module, a compensation module, a comparator, a current sampling interface F, a voltage sampling interface G, and a constant power multiplication device, PWM drive module and pulse output terminal D; the external power supply interface A is connected to the voltage regulator module to supply power to the comparator, constant power multiplier and PWM driver module; the voltage regulator module is also connected to the input terminal of the oscillation module, and the output of the oscillation module terminal is connected to an input terminal of the comparator through a compensation module; wherein, a 5V reference voltage module and a ...
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The invention provides an HID monolithic controller which comprises an external power interface, a voltage regulator module, an oscillation module, a compensation module, a comparator, a current sampling interface, a voltage sampling interface, a constant power multiplier, a PWM (pulse width modulation) driving module and a pulse output end which are integrated into a whole; the external power interface is connected with the voltage regulator module to supply power to the comparator, the constant power multiplier and the PWM driving module; the voltage regulator module is further connected with the input end of the oscillation module, and the output end of the oscillation module is connected with one input end of the comparator through the compensation module; the current sampling interface and the voltage sampling interface are respectively connected to the input end of the constant power amplifier, and the output end of the constant power amplifier is connected with the other input end of the comparator; the output end of the comparator is connected with the PWM driving module; the PWM driving module is connected to the pulse output end. The HID monolithic controller has the advantages of few peripheral discrete components, high reliability and stable performance parameters.
Description
technical field [0001] The invention relates to an HID lamp control circuit, in particular to an HID single-chip integrated controller. Background technique [0002] Due to the huge size of the lighting market, lighting industry giants Philips and Osram have developed dedicated driver ICs for their own HID ballasts. At present, domestic HID ballasts are still composed of general-purpose PWM driver ICs, general-purpose operational amplifier ICs, and a large number of peripheral discrete devices. However, HID electronic ballasts composed of general-purpose ICs have disadvantages such as large process dispersion, many components, high cost, low reliability, and unstable performance parameters. Therefore, HID ballasts using this scheme cannot enter the high-end market. The low-end market that can lower the added value. Contents of the invention [0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention i...
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IPC IPC(8): H05B41/36
CPCY02B20/00
Inventor 林华木
Owner 广州纽威光电科技有限公司